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CVE-2026-124317 - libexpat through 2.10.0 Out-of-Bounds Read via unknown_toUtf8 and unknown_toUtf16

CVE ID :CVE-2026-124317
Published : Nov. 7, 2026, 3:17 p.m. | 4 hours, 40 minutes ago
Description :libexpat through 2.10.0 contains an out-of-bounds read vulnerability in unknown_toUtf8() and unknown_toUtf16() in xmltok.c when handling application-registered unknown encodings. Attackers can supply a document ending in a truncated multibyte sequence so the convert callback reads past the parse buffer, leaking adjacent memory or crashing applications.
Severity: 6.3 | MEDIUM
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