Bug 2528989 (CVE-2026-86140) - CVE-2026-86140 libxml2: libxml2: Arbitrary code execution via stack-based buffer overflow in xmlSnprintfElements
Summary: CVE-2026-86140 libxml2: libxml2: Arbitrary code execution via stack-based buf...
Keywords:
Status: NEW
Alias: CVE-2026-86140
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On: 2529715 2529716 2529717 2529718
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-05 04:41 UTC by OSIDB Bzimport
Modified: 2026-09-08 08:35 UTC (History)
27 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-05 04:41:28 UTC 
In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.
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