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CVE-2026-8401 (GCVE-0-2026-8401)
Vulnerability from cvelistv5 – Published: 2026-05-12 14:24 – Updated: 2026-05-19 17:10
VLAI
EPSS
Title
Sandbox escape in the Profile Backup component
Summary
Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.36 , ≤ 115.*
(rpm)
Unaffected: 140.11 , ≤ 140.* (rpm) Unaffected: 150.0.3 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ *
(rpm)
|
Credits
ggwhyp
{
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{
"metrics": [
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"cvssV3_1": {
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"attackVector": "NETWORK",
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"integrityImpact": "HIGH",
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"cna": {
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},
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},
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}
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},
{
"product": "Thunderbird",
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}
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"credits": [
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}
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"supportingMedia": [
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"base64": false,
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}
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}
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},
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"url": "https://www.mozilla.org/security/advisories/mfsa2026-47/"
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{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-48/"
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"date": "2026-06-05",
"epss": "0.00084",
"percentile": "0.24553"
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"vulnrichment": {
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alsa-2026:21378
Vulnerability from osv_almalinux
Published
2026-05-27 00:00
Modified
2026-05-29 12:27
Summary
Important: firefox security update
Details
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
Security Fix(es):
- firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)
- firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)
- firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)
- firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)
- firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)
- firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)
- firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)
- firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)
- firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)
- firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)
- firefox: Privilege escalation in the Security component (CVE-2026-8970)
- firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)
- firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)
- firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)
- firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)
- firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)
- firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)
- firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:9",
"name": "firefox"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.11.0-1.el9_8.alma.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "AlmaLinux:9",
"name": "firefox-x11"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.11.0-1.el9_8.alma.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. \n\nSecurity Fix(es): \n\n * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)\n * firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)\n * firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)\n * firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)\n * firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)\n * firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)\n * firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)\n * firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)\n * firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)\n * firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)\n * firefox: Privilege escalation in the Security component (CVE-2026-8970)\n * firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)\n * firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)\n * firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)\n * firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)\n * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)\n * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)\n * firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2026:21378",
"modified": "2026-05-29T12:27:51Z",
"published": "2026-05-27T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:21378"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8388"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8391"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8401"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8946"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8947"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8950"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8953"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8954"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8955"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8956"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8957"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8958"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8961"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8962"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8968"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8970"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8974"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8975"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476469"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476475"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476492"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479839"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479840"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479842"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479846"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479847"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479848"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479849"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479852"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479853"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479855"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479860"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479871"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479873"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479876"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479880"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/9/ALSA-2026-21378.html"
}
],
"related": [
"CVE-2026-8388",
"CVE-2026-8391",
"CVE-2026-8401",
"CVE-2026-8956",
"CVE-2026-8975",
"CVE-2026-8955",
"CVE-2026-8968",
"CVE-2026-8954",
"CVE-2026-8958",
"CVE-2026-8946",
"CVE-2026-8970",
"CVE-2026-8950",
"CVE-2026-8974",
"CVE-2026-8953",
"CVE-2026-8961",
"CVE-2026-8947",
"CVE-2026-8962",
"CVE-2026-8957"
],
"summary": "Important: firefox security update"
}
alsa-2026:21380
Vulnerability from osv_almalinux
Published
2026-05-27 00:00
Modified
2026-05-29 09:42
Summary
Important: firefox security update
Details
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
Security Fix(es):
- firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)
- firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)
- firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)
- firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)
- firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)
- firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)
- firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)
- firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)
- firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)
- firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)
- firefox: Privilege escalation in the Security component (CVE-2026-8970)
- firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)
- firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)
- firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)
- firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)
- firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)
- firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)
- firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
| URL | Type | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:10",
"name": "firefox"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.11.0-1.el10_2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. \n\nSecurity Fix(es): \n\n * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)\n * firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)\n * firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)\n * firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)\n * firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)\n * firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)\n * firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)\n * firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)\n * firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)\n * firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)\n * firefox: Privilege escalation in the Security component (CVE-2026-8970)\n * firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)\n * firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)\n * firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)\n * firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)\n * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)\n * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)\n * firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2026:21380",
"modified": "2026-05-29T09:42:38Z",
"published": "2026-05-27T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:21380"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8388"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8391"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8401"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8946"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8947"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8950"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8953"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8954"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8955"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8956"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8957"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8958"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8961"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8962"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8968"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8970"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8974"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8975"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476469"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476475"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476492"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479839"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479840"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479842"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479846"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479847"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479848"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479849"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479852"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479853"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479855"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479860"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479871"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479873"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479876"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479880"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/10/ALSA-2026-21380.html"
}
],
"related": [
"CVE-2026-8388",
"CVE-2026-8391",
"CVE-2026-8401",
"CVE-2026-8956",
"CVE-2026-8975",
"CVE-2026-8955",
"CVE-2026-8968",
"CVE-2026-8954",
"CVE-2026-8958",
"CVE-2026-8946",
"CVE-2026-8970",
"CVE-2026-8950",
"CVE-2026-8974",
"CVE-2026-8953",
"CVE-2026-8961",
"CVE-2026-8947",
"CVE-2026-8962",
"CVE-2026-8957"
],
"summary": "Important: firefox security update"
}
alsa-2026:21381
Vulnerability from osv_almalinux
Published
2026-05-27 00:00
Modified
2026-05-29 09:48
Summary
Important: thunderbird security update
Details
Mozilla Thunderbird is a standalone mail and newsgroup client.
Security Fix(es):
- firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)
- firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)
- firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)
- firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)
- firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)
- firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)
- firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)
- firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)
- firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)
- firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)
- firefox: Privilege escalation in the Security component (CVE-2026-8970)
- firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)
- firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)
- firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)
- firefox: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component (CVE-2026-8959)
- firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)
- firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)
- firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)
- firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
| URL | Type | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:9",
"name": "thunderbird"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.11.0-1.el9_8.alma.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Mozilla Thunderbird is a standalone mail and newsgroup client. \n\nSecurity Fix(es): \n\n * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)\n * firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)\n * firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)\n * firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)\n * firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)\n * firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)\n * firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)\n * firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)\n * firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)\n * firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)\n * firefox: Privilege escalation in the Security component (CVE-2026-8970)\n * firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)\n * firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)\n * firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)\n * firefox: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component (CVE-2026-8959)\n * firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)\n * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)\n * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)\n * firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2026:21381",
"modified": "2026-05-29T09:48:34Z",
"published": "2026-05-27T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:21381"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8388"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8391"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8401"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8946"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8947"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8950"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8953"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8954"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8955"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8956"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8957"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8958"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8959"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8961"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8962"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8968"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8970"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8974"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8975"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476469"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476475"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476492"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479839"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479840"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479842"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479846"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479847"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479848"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479849"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479852"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479853"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479855"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479860"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479861"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479871"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479873"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479876"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479880"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/9/ALSA-2026-21381.html"
}
],
"related": [
"CVE-2026-8388",
"CVE-2026-8391",
"CVE-2026-8401",
"CVE-2026-8956",
"CVE-2026-8975",
"CVE-2026-8955",
"CVE-2026-8968",
"CVE-2026-8954",
"CVE-2026-8958",
"CVE-2026-8946",
"CVE-2026-8970",
"CVE-2026-8950",
"CVE-2026-8974",
"CVE-2026-8953",
"CVE-2026-8959",
"CVE-2026-8961",
"CVE-2026-8947",
"CVE-2026-8962",
"CVE-2026-8957"
],
"summary": "Important: thunderbird security update"
}
alsa-2026:21382
Vulnerability from osv_almalinux
Published
2026-05-27 00:00
Modified
2026-05-29 12:37
Summary
Important: firefox security update
Details
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
Security Fix(es):
- firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)
- firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)
- firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)
- firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)
- firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)
- firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)
- firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)
- firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)
- firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)
- firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)
- firefox: Privilege escalation in the Security component (CVE-2026-8970)
- firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)
- firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)
- firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)
- firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)
- firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)
- firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)
- firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
| URL | Type | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "firefox"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.11.0-1.el8_10.alma.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. \n\nSecurity Fix(es): \n\n * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)\n * firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)\n * firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)\n * firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)\n * firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)\n * firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)\n * firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)\n * firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)\n * firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)\n * firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)\n * firefox: Privilege escalation in the Security component (CVE-2026-8970)\n * firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)\n * firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)\n * firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)\n * firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)\n * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)\n * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)\n * firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2026:21382",
"modified": "2026-05-29T12:37:43Z",
"published": "2026-05-27T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:21382"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8388"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8391"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8401"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8946"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8947"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8950"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8953"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8954"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8955"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8956"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8957"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8958"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8961"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8962"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8968"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8970"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8974"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8975"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476469"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476475"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476492"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479839"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479840"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479842"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479846"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479847"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479848"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479849"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479852"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479853"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479855"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479860"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479871"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479873"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479876"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479880"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/8/ALSA-2026-21382.html"
}
],
"related": [
"CVE-2026-8388",
"CVE-2026-8391",
"CVE-2026-8401",
"CVE-2026-8956",
"CVE-2026-8975",
"CVE-2026-8955",
"CVE-2026-8968",
"CVE-2026-8954",
"CVE-2026-8958",
"CVE-2026-8946",
"CVE-2026-8970",
"CVE-2026-8950",
"CVE-2026-8974",
"CVE-2026-8953",
"CVE-2026-8961",
"CVE-2026-8947",
"CVE-2026-8962",
"CVE-2026-8957"
],
"summary": "Important: firefox security update"
}
alsa-2026:22325
Vulnerability from osv_almalinux
Published
2026-06-01 00:00
Modified
2026-06-03 07:54
Summary
Important: thunderbird security update
Details
Mozilla Thunderbird is a standalone mail and newsgroup client.
Security Fix(es):
- firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)
- firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)
- firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)
- firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)
- firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)
- firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)
- firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)
- firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)
- firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)
- firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)
- firefox: Privilege escalation in the Security component (CVE-2026-8970)
- firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)
- firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)
- firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)
- firefox: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component (CVE-2026-8959)
- firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)
- firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)
- firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)
- firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
| URL | Type | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:10",
"name": "thunderbird"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.11.0-1.el10_2.alma.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Mozilla Thunderbird is a standalone mail and newsgroup client. \n\nSecurity Fix(es): \n\n * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)\n * firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)\n * firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)\n * firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)\n * firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)\n * firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)\n * firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)\n * firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)\n * firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)\n * firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)\n * firefox: Privilege escalation in the Security component (CVE-2026-8970)\n * firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)\n * firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)\n * firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)\n * firefox: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component (CVE-2026-8959)\n * firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)\n * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)\n * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)\n * firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2026:22325",
"modified": "2026-06-03T07:54:36Z",
"published": "2026-06-01T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:22325"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8388"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8391"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8401"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8946"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8947"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8950"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8953"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8954"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8955"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8956"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8957"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8958"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8959"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8961"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8962"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8968"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8970"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8974"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8975"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476469"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476475"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476492"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479839"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479840"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479842"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479846"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479847"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479848"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479849"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479852"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479853"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479855"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479860"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479861"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479871"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479873"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479876"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479880"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/10/ALSA-2026-22325.html"
}
],
"related": [
"CVE-2026-8388",
"CVE-2026-8391",
"CVE-2026-8401",
"CVE-2026-8956",
"CVE-2026-8975",
"CVE-2026-8955",
"CVE-2026-8968",
"CVE-2026-8954",
"CVE-2026-8958",
"CVE-2026-8946",
"CVE-2026-8970",
"CVE-2026-8950",
"CVE-2026-8974",
"CVE-2026-8953",
"CVE-2026-8959",
"CVE-2026-8961",
"CVE-2026-8947",
"CVE-2026-8962",
"CVE-2026-8957"
],
"summary": "Important: thunderbird security update"
}
alsa-2026:22643
Vulnerability from osv_almalinux
Published
2026-06-02 00:00
Modified
2026-06-03 07:57
Summary
Important: thunderbird security update
Details
Mozilla Thunderbird is a standalone mail and newsgroup client.
Security Fix(es):
- firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)
- firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)
- firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)
- firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)
- firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)
- firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)
- firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)
- firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)
- firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)
- firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)
- firefox: Privilege escalation in the Security component (CVE-2026-8970)
- firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)
- firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)
- firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)
- firefox: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component (CVE-2026-8959)
- firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)
- firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)
- firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)
- firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
| URL | Type | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "thunderbird"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.11.0-1.el8_10.alma.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Mozilla Thunderbird is a standalone mail and newsgroup client. \n\nSecurity Fix(es): \n\n * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-8388)\n * firefox: Other issue in the JavaScript Engine component (CVE-2026-8391)\n * firefox: Sandbox escape in the Profile Backup component (CVE-2026-8401)\n * firefox: Integer overflow in the Networking: JAR component (CVE-2026-8956)\n * firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151 (CVE-2026-8975)\n * firefox: Privilege escalation in the DOM: Workers component (CVE-2026-8955)\n * firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component (CVE-2026-8968)\n * firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component (CVE-2026-8954)\n * firefox: Information disclosure, sandbox escape in the Security: Process Sandboxing component (CVE-2026-8958)\n * firefox: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-8946)\n * firefox: Privilege escalation in the Security component (CVE-2026-8970)\n * firefox: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-8950)\n * firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151 (CVE-2026-8974)\n * firefox: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-8953)\n * firefox: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component (CVE-2026-8959)\n * firefox: Spoofing issue in the Form Autofill component (CVE-2026-8961)\n * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-8947)\n * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-8962)\n * firefox: Privilege escalation in the Enterprise Policies component (CVE-2026-8957)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2026:22643",
"modified": "2026-06-03T07:57:07Z",
"published": "2026-06-02T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:22643"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8388"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8391"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8401"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8946"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8947"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8950"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8953"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8954"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8955"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8956"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8957"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8958"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8959"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8961"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8962"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8968"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8970"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8974"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-8975"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476469"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476475"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2476492"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479839"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479840"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479842"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479846"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479847"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479848"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479849"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479852"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479853"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479855"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479860"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479861"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479871"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479873"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479876"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479880"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/8/ALSA-2026-22643.html"
}
],
"related": [
"CVE-2026-8388",
"CVE-2026-8391",
"CVE-2026-8401",
"CVE-2026-8956",
"CVE-2026-8975",
"CVE-2026-8955",
"CVE-2026-8968",
"CVE-2026-8954",
"CVE-2026-8958",
"CVE-2026-8946",
"CVE-2026-8970",
"CVE-2026-8950",
"CVE-2026-8974",
"CVE-2026-8953",
"CVE-2026-8959",
"CVE-2026-8961",
"CVE-2026-8947",
"CVE-2026-8962",
"CVE-2026-8957"
],
"summary": "Important: thunderbird security update"
}
CERTFR-2026-AVI-0578
Vulnerability from certfr_avis - Published: 2026-05-13 - Updated: 2026-05-13
De multiples vulnérabilités ont été découvertes dans Mozilla Firefox. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox versions ant\u00e9rieures \u00e0 150.0.3",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-8390",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8390"
},
{
"name": "CVE-2026-8401",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8401"
},
{
"name": "CVE-2026-8391",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8391"
},
{
"name": "CVE-2026-8388",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8388"
},
{
"name": "CVE-2026-8389",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8389"
}
],
"initial_release_date": "2026-05-13T00:00:00",
"last_revision_date": "2026-05-13T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0578",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-05-13T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Mozilla Firefox. Elles permettent \u00e0 un attaquant de provoquer un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Mozilla Firefox",
"vendor_advisories": [
{
"published_at": "2026-05-12",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-45",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-45/"
}
]
}
CERTFR-2026-AVI-0615
Vulnerability from certfr_avis - Published: 2026-05-20 - Updated: 2026-05-20
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, une élévation de privilèges et un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Thunderbird | Thunderbird versions antérieures à 151 | ||
| Mozilla | Firefox | Firefox versions antérieures à 151 | ||
| Mozilla | Firefox | Firefox pour iOS versions antérieures à 151.0 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 140.11 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 115.36 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.11 |
References
| Title | Publication Time | Tags | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 151",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 151",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox pour iOS versions ant\u00e9rieures \u00e0 151.0",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 140.11",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.36",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.11",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-8975",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8975"
},
{
"name": "CVE-2026-8961",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8961"
},
{
"name": "CVE-2026-8946",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8946"
},
{
"name": "CVE-2026-8948",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8948"
},
{
"name": "CVE-2026-8945",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8945"
},
{
"name": "CVE-2026-8958",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8958"
},
{
"name": "CVE-2026-8974",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8974"
},
{
"name": "CVE-2026-8964",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8964"
},
{
"name": "CVE-2026-8973",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8973"
},
{
"name": "CVE-2026-8954",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8954"
},
{
"name": "CVE-2026-8957",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8957"
},
{
"name": "CVE-2026-8951",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8951"
},
{
"name": "CVE-2026-8952",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8952"
},
{
"name": "CVE-2026-8706",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8706"
},
{
"name": "CVE-2026-8956",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8956"
},
{
"name": "CVE-2026-8967",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8967"
},
{
"name": "CVE-2026-8971",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8971"
},
{
"name": "CVE-2026-8953",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8953"
},
{
"name": "CVE-2026-8970",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8970"
},
{
"name": "CVE-2026-8965",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8965"
},
{
"name": "CVE-2026-8949",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8949"
},
{
"name": "CVE-2026-8972",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8972"
},
{
"name": "CVE-2026-8969",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8969"
},
{
"name": "CVE-2026-8401",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8401"
},
{
"name": "CVE-2026-8391",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8391"
},
{
"name": "CVE-2026-8962",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8962"
},
{
"name": "CVE-2026-8963",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8963"
},
{
"name": "CVE-2026-8388",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8388"
},
{
"name": "CVE-2026-8968",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8968"
},
{
"name": "CVE-2026-8966",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8966"
},
{
"name": "CVE-2026-8960",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8960"
},
{
"name": "CVE-2026-8950",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8950"
},
{
"name": "CVE-2026-8959",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8959"
},
{
"name": "CVE-2026-8947",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8947"
},
{
"name": "CVE-2026-8955",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8955"
}
],
"initial_release_date": "2026-05-20T00:00:00",
"last_revision_date": "2026-05-20T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0615",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-05-20T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mozilla. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-47",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-47/"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-46",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-46/"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-50",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-50/"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-48",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-48/"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-49",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-49/"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-51",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-51/"
}
]
}
FKIE_CVE-2026-8401
Vulnerability from fkie_nvd - Published: 2026-05-12 15:16 - Updated: 2026-05-19 18:16
Severity
Summary
Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.
References
| URL | Tags | ||
|---|---|---|---|
| security@mozilla.org | https://bugzilla.mozilla.org/show_bug.cgi?id=2038679 | Permissions Required | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-45/ | Vendor Advisory | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-47/ | ||
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-48/ | ||
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-51/ |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
"matchCriteriaId": "B13F359A-1C15-48B4-8319-AD42CC852E8C",
"versionEndExcluding": "150.0.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11."
}
],
"id": "CVE-2026-8401",
"lastModified": "2026-05-19T18:16:31.523",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2026-05-12T15:16:20.100",
"references": [
{
"source": "security@mozilla.org",
"tags": [
"Permissions Required"
],
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2038679"
},
{
"source": "security@mozilla.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.mozilla.org/security/advisories/mfsa2026-45/"
},
{
"source": "security@mozilla.org",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-47/"
},
{
"source": "security@mozilla.org",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-48/"
},
{
"source": "security@mozilla.org",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-51/"
}
],
"sourceIdentifier": "security@mozilla.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-693"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
GHSA-RR5W-74H2-XQHC
Vulnerability from github – Published: 2026-05-12 15:31 – Updated: 2026-05-19 18:32
VLAI
Details
Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-8401"
],
"database_specific": {
"cwe_ids": [
"CWE-693"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-12T15:16:20Z",
"severity": "CRITICAL"
},
"details": "Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3.",
"id": "GHSA-rr5w-74h2-xqhc",
"modified": "2026-05-19T18:32:07Z",
"published": "2026-05-12T15:31:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8401"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2038679"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-45"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-47"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-48"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-51"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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