CVE-2026-55777

NameCVE-2026-55777
DescriptionGoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through the browser. Prior to 1.11, the parse_ios() function uses an attacker-controlled keyword-to-OS offset as both the source offset and copy length for memmove, allowing a crafted User-Agent in a processed access log to read up to approximately 4 KB beyond the heap allocation and conditionally crash GoAccess. This issue is fixed in version 1.11.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1143181

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
goaccess (PTS)bullseye1:1.4-1vulnerable
bookworm1:1.7-1vulnerable
trixie1:1.9.3-1vulnerable
forky, sid1:1.10.1-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
goaccesssource(unstable)(unfixed)1143181

Notes

https://github.com/allinurl/goaccess/security/advisories/GHSA-5phr-qpgf-hgrg
Fixed by: https://github.com/allinurl/goaccess/commit/ba813ed97d998dbdcb8d87e178799a4bb2da9e81 (v1.11)

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