RHSA-2026:51349
Vulnerability from csaf_redhat - Published: 2026-08-06 20:12 - Updated: 2026-08-11 15:31Summary
Red Hat Security Advisory: General availability of the satellite/iop-host-inventory-frontend-rhel9 container image
Severity
Important
Notes
Topic: A new satellite/iop-host-inventory-frontend-rhel9 container image is now generally available in the Red Hat container registry.
Details: Red Hat Lightspeed in Satellite analyzes system health and configuration by applying predefined rules to a small set of local data, such as installed packages, running services, and configuration settings. When you install Red Hat Lightspeed in Satellite locally, you can generate Red Hat Lightspeed recommendations without sending system data to Red Hat services.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the `expand()` function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-loop blocking. This can result in a Denial of Service (DoS) for the affected system.
7.5 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in fast-uri. This vulnerability occurs because fast-uri fails to properly convert Unicode (Internationalized Domain Name - IDN) hostnames for HTTP-family URLs. This can lead to a situation where security policies, such as denylists or redirect validations, are bypassed when applications use fast-uri to enforce these policies before passing the URL to another parser. A remote attacker could exploit this to circumvent security controls and potentially access unauthorized resources or perform malicious redirects.
7.5 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A denial of service flaw has been discovered in the fast-xml-parser npm library. In fast-xml-parser, a RangeError vulnerability exists in the numeric entity processing of fast-xml-parser when parsing XML with out-of-range entity code points (e.g., `�` or `�`). This causes the parser to throw an uncaught exception, crashing any application that processes untrusted XML input.
5.3 (Medium)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A flaw was found in fast-xml-parser. A remote attacker can exploit this vulnerability by providing a specially crafted XML input. The system incorrectly interprets a dot in a DOCTYPE entity name as a regular expression wildcard during processing. This allows the attacker to bypass security measures and inject malicious scripts, resulting in Cross-Site Scripting (XSS) when the parsed output is displayed to users.
7.1 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A denial of service flaw was found in fast-xml-parser. A remote attacker can exploit this vulnerability by providing a specially crafted, small XML input. This input can force the XML parser to perform an unlimited amount of entity expansion, consuming excessive resources. This can lead to the application freezing for an extended period, resulting in a Denial of Service (DoS).
7.5 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in minimatch. A remote attacker could exploit this Regular Expression Denial of Service (ReDoS) vulnerability by providing a specially crafted glob pattern. This pattern, containing numerous consecutive wildcard characters, causes excessive processing and exponential backtracking in the regular expression engine. Successful exploitation leads to a Denial of Service (DoS), making the application unresponsive.
6.5 (Medium)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in minimatch. A remote attacker could exploit this vulnerability by providing a specially crafted glob expression with nested unbounded quantifiers. This could lead to catastrophic backtracking in the V8 JavaScript engine, causing the application to become unresponsive and resulting in a Denial of Service (DoS).
6.5 (Medium)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in fast-xml-parser. A user can exploit this flaw by processing specially crafted XML data with the XML builder when the `preserveOrder` option is enabled. This can lead to a stack overflow, causing the application to crash and resulting in a Denial of Service (DoS).
7.5 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A flaw was found in fast-xml-parser. A remote attacker can exploit this vulnerability by supplying specially crafted XML input containing numeric character references or standard XML entities. This input can bypass configured entity expansion limits, leading to excessive memory allocation and high CPU usage. The primary consequence is a Denial of Service (DoS), which can crash the affected process.
7.5 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A flaw was found in the `sanitize-html` library. Under its default configuration, an attacker can embed malicious content within a disallowed `xmp` element. This vulnerability allows the attacker to bypass the HTML sanitization process, leading to stored Cross-Site Scripting (XSS). Successful exploitation can result in arbitrary code execution or information disclosure when a user views the affected content.
8.1 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
81 references
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"ids": [
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"category": "description",
"text": "A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the `expand()` function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-loop blocking. This can result in a Denial of Service (DoS) for the affected system.",
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"text": "brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity",
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"text": "A flaw was found in brace-expansion, a widely-used npm package for expanding brace sequences. The expand() function exhibits exponential-time complexity when processing consecutive non-expanding brace groups. An attacker who can supply crafted input to expand(), directly or transitively via minimatch or glob, can cause significant CPU consumption and event-loop blocking, resulting in denial of service. The max option does not mitigate this issue, as it bounds the output size rather than the recursion work.",
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"date": "2026-08-06T20:12:40+00:00",
"details": "For Red Hat Lightspeed in Satellite installation see the Red Hat Satellite documentation.",
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"product_ids": [
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity"
},
{
"cve": "CVE-2026-13676",
"cwe": {
"id": "CWE-551",
"name": "Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"
},
"discovery_date": "2026-06-29T14:01:55.592330+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2494197"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in fast-uri. This vulnerability occurs because fast-uri fails to properly convert Unicode (Internationalized Domain Name - IDN) hostnames for HTTP-family URLs. This can lead to a situation where security policies, such as denylists or redirect validations, are bypassed when applications use fast-uri to enforce these policies before passing the URL to another parser. A remote attacker could exploit this to circumvent security controls and potentially access unauthorized resources or perform malicious redirects.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "fast-uri: fast-uri: Security policy bypass due to improper Unicode hostname canonicalization",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This Important flaw in `fast-uri` allows a remote attacker to bypass host-based security policies. Applications that rely on `fast-uri` for URL parsing and policy enforcement, such as denylists or redirect validations, can be circumvented due to inconsistent handling of Unicode hostnames. This discrepancy between `fast-uri` and other URL parsers could lead to unauthorized resource access or malicious redirects in affected Red Hat products.",
"title": "Statement"
},
{
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{
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"title": "Vulnerability summary"
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{
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"title": "Statement"
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{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
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"details": "For Red Hat Lightspeed in Satellite installation see the Red Hat Satellite documentation.",
"product_ids": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:51349"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "minimatch: minimatch: Denial of Service via specially crafted glob patterns"
},
{
"cve": "CVE-2026-27904",
"cwe": {
"id": "CWE-1333",
"name": "Inefficient Regular Expression Complexity"
},
"discovery_date": "2026-02-26T02:01:23.004531+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2442922"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in minimatch. A remote attacker could exploit this vulnerability by providing a specially crafted glob expression with nested unbounded quantifiers. This could lead to catastrophic backtracking in the V8 JavaScript engine, causing the application to become unresponsive and resulting in a Denial of Service (DoS).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "minimatch: Minimatch: Denial of Service via catastrophic backtracking in glob expressions",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Exploitation of this flaw requires that a user or service processes untrusted input.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-27904"
},
{
"category": "external",
"summary": "RHBZ#2442922",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442922"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-27904",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-27904"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-27904",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27904"
},
{
"category": "external",
"summary": "https://github.com/isaacs/minimatch/security/advisories/GHSA-23c5-xmqv-rm74",
"url": "https://github.com/isaacs/minimatch/security/advisories/GHSA-23c5-xmqv-rm74"
}
],
"release_date": "2026-02-26T01:07:42.693000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-08-06T20:12:40+00:00",
"details": "For Red Hat Lightspeed in Satellite installation see the Red Hat Satellite documentation.",
"product_ids": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:51349"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "minimatch: Minimatch: Denial of Service via catastrophic backtracking in glob expressions"
},
{
"cve": "CVE-2026-27942",
"cwe": {
"id": "CWE-776",
"name": "Improper Restriction of Recursive Entity References in DTDs (\u0027XML Entity Expansion\u0027)"
},
"discovery_date": "2026-02-26T03:01:53.367202+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2442938"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in fast-xml-parser. A user can exploit this flaw by processing specially crafted XML data with the XML builder when the `preserveOrder` option is enabled. This can lead to a stack overflow, causing the application to crash and resulting in a Denial of Service (DoS).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "fast-xml-parser: fast-xml-parser: Stack overflow leads to Denial of Service",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The flaw affects the XML builder component of the fast-xml-parser library and is triggered only when the preserveOrder option is explicitly enabled. In Red Hat\u2013shipped configurations, this option is not enabled by default, and the vulnerable code path is therefore not exercised under typical deployments.\nThe underlying issue results in uncontrolled recursion leading to a stack overflow condition, which causes the application to terminate unexpectedly. While this can be triggered via crafted input, the impact is limited strictly to denial of service (DoS) and does not provide a mechanism for arbitrary code execution, privilege escalation, or data disclosure.\nFurthermore, exploitation requires that the affected application processes attacker-controlled XML input through the XML builder functionality with the specific vulnerable configuration enabled. This significantly reduces the attack surface and introduces environmental constraints not considered in the generalized NVD scoring.\n\nGiven the absence of confidentiality and integrity impact, the requirement for non-default configuration, and the limitation of the impact to process termination, Red Hat considers the practical risk to be lower than the NVD assessment. As such, this issue is classified as Moderate severity.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-27942"
},
{
"category": "external",
"summary": "RHBZ#2442938",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442938"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-27942",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-27942"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-27942",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27942"
},
{
"category": "external",
"summary": "https://github.com/NaturalIntelligence/fast-xml-parser/commit/c13a961910f14986295dd28484eee830fa1a0e8a",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/commit/c13a961910f14986295dd28484eee830fa1a0e8a"
},
{
"category": "external",
"summary": "https://github.com/NaturalIntelligence/fast-xml-parser/pull/791",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/pull/791"
},
{
"category": "external",
"summary": "https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-fj3w-jwp8-x2g3",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-fj3w-jwp8-x2g3"
}
],
"release_date": "2026-02-26T01:22:11.383000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-08-06T20:12:40+00:00",
"details": "For Red Hat Lightspeed in Satellite installation see the Red Hat Satellite documentation.",
"product_ids": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:51349"
},
{
"category": "workaround",
"details": "To mitigate this vulnerability, configure applications using the `fast-xml-parser` XML builder to set the `preserveOrder` option to `false`. Alternatively, ensure that all XML input data is thoroughly validated before being passed to the builder to prevent the processing of malicious or malformed content.",
"product_ids": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "fast-xml-parser: fast-xml-parser: Stack overflow leads to Denial of Service"
},
{
"cve": "CVE-2026-33036",
"cwe": {
"id": "CWE-776",
"name": "Improper Restriction of Recursive Entity References in DTDs (\u0027XML Entity Expansion\u0027)"
},
"discovery_date": "2026-03-20T06:02:18.306021+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2449458"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in fast-xml-parser. A remote attacker can exploit this vulnerability by supplying specially crafted XML input containing numeric character references or standard XML entities. This input can bypass configured entity expansion limits, leading to excessive memory allocation and high CPU usage. The primary consequence is a Denial of Service (DoS), which can crash the affected process.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "fast-xml-parser: fast-xml-parser: Denial of Service via XML entity expansion bypass",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-33036"
},
{
"category": "external",
"summary": "RHBZ#2449458",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449458"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-33036",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33036"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33036",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33036"
},
{
"category": "external",
"summary": "https://github.com/NaturalIntelligence/fast-xml-parser/commit/bd26122c838e6a55e7d7ac49b4ccc01a49999a01",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/commit/bd26122c838e6a55e7d7ac49b4ccc01a49999a01"
},
{
"category": "external",
"summary": "https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.5.6",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.5.6"
},
{
"category": "external",
"summary": "https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-8gc5-j5rx-235r",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-8gc5-j5rx-235r"
}
],
"release_date": "2026-03-20T05:17:03.290000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-08-06T20:12:40+00:00",
"details": "For Red Hat Lightspeed in Satellite installation see the Red Hat Satellite documentation.",
"product_ids": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:51349"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "fast-xml-parser: fast-xml-parser: Denial of Service via XML entity expansion bypass"
},
{
"cve": "CVE-2026-44990",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
"discovery_date": "2026-06-12T21:02:24.911971+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2488565"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `sanitize-html` library. Under its default configuration, an attacker can embed malicious content within a disallowed `xmp` element. This vulnerability allows the attacker to bypass the HTML sanitization process, leading to stored Cross-Site Scripting (XSS). Successful exploitation can result in arbitrary code execution or information disclosure when a user views the affected content.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "sanitize-html: `sanitize-html`: Stored Cross-Site Scripting via HTML sanitizer bypass",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important flaw. The `sanitize-html` library, used in Red Hat products, is susceptible to a stored Cross-Site Scripting (XSS) bypass. Malicious content within a disallowed `xmp` element can be rendered as live HTML or JavaScript due to a sanitizer bypass in the default configuration. This can lead to arbitrary code execution or information disclosure when affected content is viewed.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-44990"
},
{
"category": "external",
"summary": "RHBZ#2488565",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488565"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-44990",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-44990"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-44990",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44990"
},
{
"category": "external",
"summary": "https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-rpr9-rxv7-x643",
"url": "https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-rpr9-rxv7-x643"
}
],
"release_date": "2026-06-12T20:39:47.065000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-08-06T20:12:40+00:00",
"details": "For Red Hat Lightspeed in Satellite installation see the Red Hat Satellite documentation.",
"product_ids": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:51349"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat Satellite 6.18:registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9@sha256:a1d343700722a13d9c7ff7b23e8e770fdbe4fdd7c55bbf4d7f4cb4bf28cafc0d_amd64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "sanitize-html: `sanitize-html`: Stored Cross-Site Scripting via HTML sanitizer bypass"
}
]
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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