CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
CVE-2026-8695 (GCVE-0-2026-8695)
Vulnerability from cvelistv5 – Published: 2026-05-15 17:01 – Updated: 2026-05-15 17:34
VLAI
Title
radare2 6.1.5 Use-After-Free via gdbr_threads_list()
Summary
radare2 6.1.5 contains a use-after-free vulnerability in the gdbr_threads_list() function that allows remote attackers to trigger memory corruption by sending a valid qfThreadInfo response followed by a malformed qsThreadInfo response. Attackers can exploit this vulnerability through GDB remote debugging to cause a denial of service or potentially achieve code execution by manipulating thread list processing.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/radareorg/radare2/issues/25835 | issue-tracking |
| https://github.com/radareorg/radare2/commit/c213a… | patch |
| https://www.vulncheck.com/advisories/radare2-use-… | third-party-advisory |
| https://github.com/radareorg/radare2/issues/25836 | issue-tracking |
Impacted products
Date Public
2026-05-15 17:00
Credits
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CVE-2026-8696 (GCVE-0-2026-8696)
Vulnerability from cvelistv5 – Published: 2026-05-15 20:52 – Updated: 2026-05-19 12:30
VLAI
Title
radare2 6.1.5 Use-After-Free via gdbr_pids_list()
Summary
radare2 6.1.5 contains a use-after-free vulnerability in the gdbr_pids_list() function within the GDB client core that allows remote attackers to cause a denial of service or potentially execute arbitrary code by sending malformed thread information responses. Attackers can trigger the vulnerability by causing qsThreadInfo to fail after qfThreadInfo successfully allocates RDebugPid structures, resulting in double-free memory corruption when the error path attempts to clean up the list.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/radareorg/radare2/issues/25836 | issue-tracking |
| https://github.com/radareorg/radare2/commit/c213a… | patch |
| https://www.vulncheck.com/advisories/radare2-use-… | third-party-advisory |
Impacted products
Date Public
2026-05-15 21:00
Credits
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CVE-2026-8746 (GCVE-0-2026-8746)
Vulnerability from cvelistv5 – Published: 2026-05-17 10:15 – Updated: 2026-05-18 20:07
VLAI
Title
Open5GS NRF nghttp2-server.c discover_handler use after free
Summary
A security flaw has been discovered in Open5GS up to 2.7.7. Affected by this issue is the function discover_handler in the library /lib/sbi/nghttp2-server.c of the component NRF. The manipulation results in use after free. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/364333 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/364333/cti | signaturepermissions-required |
| https://vuldb.com/submit/817032 | third-party-advisory |
| https://github.com/open5gs/open5gs/issues/4476 | exploitissue-tracking |
| https://github.com/open5gs/open5gs/ | product |
Impacted products
Credits
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CVE-2026-8829 (GCVE-0-2026-8829)
Vulnerability from cvelistv5 – Published: 2026-06-04 02:03 – Updated: 2026-06-04 12:59
VLAI
Title
HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities
Summary
HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities.
The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV's PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation.
The read may disclose adjacent heap contents into the destination SV.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OALDERS | HTML::Entities |
Affected:
0 , < 3.84
(custom)
|
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"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8829",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-04T12:59:04.771815Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-04T12:59:07.698Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "HTML-Parser",
"product": "HTML::Entities",
"programFiles": [
"util.c"
],
"programRoutines": [
{
"name": "HTML::Entities::_decode_entities"
}
],
"repo": "https://github.com/libwww-perl/HTML-Parser",
"vendor": "OALDERS",
"versions": [
{
"lessThan": "3.84",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities.\n\nThe XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV\u0027s PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation.\n\nThe read may disclose adjacent heap contents into the destination SV."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-04T02:03:46.702Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/libwww-perl/HTML-Parser/pull/56"
},
{
"tags": [
"patch"
],
"url": "https://github.com/libwww-perl/HTML-Parser/commit/6922552b0778c90a9587a3894e248be4d3a25e1c.patch"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to HTML-Parser 3.84 or later."
}
],
"source": {
"discovery": "UNKNOWN"
},
"timeline": [
{
"lang": "en",
"time": "2026-05-12T00:00:00.000Z",
"value": "Issue reported."
},
{
"lang": "en",
"time": "2026-05-19T00:00:00.000Z",
"value": "HTML-Parser 3.84 released."
}
],
"title": "HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities",
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-8829",
"datePublished": "2026-06-04T02:03:46.702Z",
"dateReserved": "2026-05-18T13:24:05.252Z",
"dateUpdated": "2026-06-04T12:59:07.698Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Phase: Architecture and Design
Strategy: Language Selection
Description:
- Choose a language that provides automatic memory management.
Mitigation
Phase: Implementation
Strategy: Attack Surface Reduction
Description:
- When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.