Bug 2521816 - CVE-2026-77643 xapian-core: Xapian xapian-core: Arbitrary code execution via incomplete HTML escaping [fedora-all]
Summary: CVE-2026-77643 xapian-core: Xapian xapian-core: Arbitrary code execution via ...
Keywords:
Status: ASSIGNED
Alias: None
Product: Fedora
Classification: Fedora
Component: xapian-core
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Christiano Anderson
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["5107bc9f-3e83-4638-9be6-b...
Depends On:
Blocks: CVE-2026-77643
TreeView+ depends on / blocked
 
Reported: 2026-08-24 11:30 UTC by Vladimir Vasilev
Modified: 2026-09-01 10:01 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

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Description Vladimir Vasilev 2026-08-24 11:30:55 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.
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