CVEvulnerability
CVE-2026-8177
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-05-10
- Last modified
- 2026-09-18
- Assigner
- 9b29abf9-4ab0-4765-b253-1875cd9b441e
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-125
Description
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.
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://github.com/cpan-authors/XML-LibXML/commit/15652bd905a6c9dda59a81b14d4766adbbae2ea8.patch github.com
- https://github.com/cpan-authors/XML-LibXML/issues/146 github.com
- https://github.com/cpan-authors/XML-LibXML/pull/149 github.com
- http://www.openwall.com/lists/oss-security/2026/05/10/8 www.openwall.com
- http://www.openwall.com/lists/oss-security/2026/05/11/2 www.openwall.com
- https://access.redhat.com/errata/RHSA-2026:39547 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:39553 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:39878 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:68632 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:68685 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:68688 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:68693 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-8177 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2468684 bugzilla.redhat.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8177.json security.access.redhat.com