Bug 2567801 (CVE-2026-123202) - CVE-2026-123202 libnxml: libnxml: Denial of Service via stack-based buffer overflow
Summary: CVE-2026-123202 libnxml: libnxml: Denial of Service via stack-based buffer ov...
Keywords:
Status: NEW
Alias: CVE-2026-123202
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-05 22:27 UTC by OSIDB Bzimport
Modified: 2026-11-06 01:31 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-11-05 22:27:06 UTC 
libnxml before 0.18.6 contains a stack-based buffer overflow vulnerability in src/nxml_parser.c that allows remote attackers to write past a 1024-byte stack buffer via long XML names. Attackers can supply XML or RSS feeds with a 1022-character element, attribute, DOCTYPE or entity name ending in a multi-byte UTF-8 character to crash parsing applications.
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