GHSA-G5H8-X64V-QF5H
Vulnerability from github – Published: 2026-05-10 21:30 – Updated: 2026-09-18 15:31
VLAI
Details
XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences.
A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory.
Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-8177"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-10T21:16:30Z",
"severity": "HIGH"
},
"details": "XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences.\n\nA node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory.\n\nAny Perl process that passes attacker controlled strings to XML::LibXML\u0027s DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.",
"id": "GHSA-g5h8-x64v-qf5h",
"modified": "2026-09-18T15:31:30Z",
"published": "2026-05-10T21:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8177"
},
{
"type": "WEB",
"url": "https://github.com/cpan-authors/XML-LibXML/issues/146"
},
{
"type": "WEB",
"url": "https://github.com/cpan-authors/XML-LibXML/pull/149"
},
{
"type": "WEB",
"url": "https://github.com/cpan-authors/XML-LibXML/commit/15652bd905a6c9dda59a81b14d4766adbbae2ea8.patch"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:39547"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:39553"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:39878"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:68632"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:68685"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:68688"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:68693"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-8177"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468684"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8177.json"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/05/10/8"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/05/11/2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Loading…
Loading…
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.
Loading…
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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…