GHSA-j83x-34mv-v962HighCVSS 7.5
libexpat through 2.9.0 contains a denial of service vulnerability because billion laughs...
🔗 CVE IDs covered (1)
📋 Description
libexpat through 2.9.0 contains a denial of service vulnerability because billion laughs protection in accountingDiffTolerated() in xmlparse.c detects entity amplification too late. Attackers can supply a moderately sized XML document with a large DTD and nested entity expansions to consume tens of seconds of CPU per parse.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-115506
- https://github.com/libexpat/libexpat/issues/1160
- https://github.com/libexpat/libexpat/pull/1433
- https://github.com/hannob/lololol
- https://github.com/libexpat/libexpat
- https://www.vulncheck.com/advisories/libexpat-through-2.9.0-denial-of-service-via-billion-laughs-detection-delay
- https://github.com/advisories/GHSA-j83x-34mv-v962