Medium severity6.9NVD Advisory· Published Jun 19, 2026· Updated Jun 23, 2026
CVE-2026-56132
CVE-2026-56132
Description
In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
11cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*range: <2.8.2
- (no CPE)range: <2.8.2
- osv-coords9 versionspkg:apk/chainguard/expatpkg:apk/chainguard/libexpat1pkg:apk/chainguard/expat-devpkg:rpm/opensuse/expat&distro=openSUSE%20Tumbleweedpkg:rpm/almalinux/expatpkg:apk/wolfi/expatpkg:apk/wolfi/libexpat1pkg:rpm/almalinux/expat-develpkg:apk/wolfi/expat-dev
< 2.8.2-r0+ 8 more
- (no CPE)range: < 2.8.2-r0
- (no CPE)range: < 2.8.2-r0
- (no CPE)range: < 2.8.2-r0
- (no CPE)range: < 2.8.2-1.1
- (no CPE)range: < 2.5.0-2.el8_10.2
- (no CPE)range: < 2.8.2-r0
- (no CPE)range: < 2.8.2-r0
- (no CPE)range: < 2.5.0-2.el8_10.2
- (no CPE)range: < 2.8.2-r0
Patches
Vulnerability mechanics
References
1News mentions
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