CVE-2026-77643

Description

A cross-site scripting vulnerability in queryparser/termgenerator_internal.cc in Xapian xapian-core before 2.1.0 and before 1.4.32 exists due to incomplete HTML escaping by Xapian::MSet::snippet(). NOTE: this issue exists because of a missed corner case of CVE-2018-0499.

CVSS Vector

References

• https://bugs.debian.org/1144490
• https://lists.xapian.org/pipermail/xapian-devel/2026-August/003429.html
• https://trac.xapian.org/wiki/SecurityFixes/2018-07-02#a2026-08-13update