CVE-2026-113351 (GCVE-0-2026-113351)

Vulnerability from cvelistv5 – Published: 2026-10-20 10:41 – Updated: 2026-10-20 16:06
VLAI
Title
libexpat 2.7.2 through 2.9.0 Denial of Service via XML_ParserReset
Summary
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.
Severity
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 15:10 UTC
CWE
  • CWE-909 - Missing Initialization of Resource
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6635 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
libexpat libexpat Affected: 2.7.2 , ≤ 2.9.0 (semver)
    cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-19 18:07
Credits
Pu Cheng
Show details on NVD website
To clipboard 

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