Bug 2556110 (CVE-2026-113351) - CVE-2026-113351 expat: expat: Denial of Service via improper memory tracking in XML_ParserReset
Summary: CVE-2026-113351 expat: expat: Denial of Service via improper memory tracking ...
Keywords:
Status: NEW
Alias: CVE-2026-113351
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-20 10:51 UTC by OSIDB Bzimport
Modified: 2026-10-20 10:58 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-10-20 10:51:22 UTC 
libexpat 2.7.2 through 2.9.0 contains a denial of service vulnerability because XML_ParserReset zeroes the direct byte count but never offsets tracked heap allocations. Attackers can submit a large XML document so later documents on the same reset parser fail with XML_ERROR_NO_MEMORY until it is recreated.
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