Name: CVE-2026-77643: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2026-08-20T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-77643, CWE-79, CVSS 4.4, EPSS 0.00252

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 Details

CVSS 3.1 Base Score: 4.4
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade xapian-core	Sep 21, 2026	Aug 20, 2026
Redhat_linux	—	No solution exists	Aug 26, 2026	Aug 20, 2026

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CVSS Details

Covered by Rapid7

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