CVE-2022-34009

MEDIUM 5.5CVE-2022-34009 · Published 28/07/2022 · updated 17/06/2026

In short

CVE-2022-34009 is a MEDIUM (CVSS 5.5) vulnerability affecting fossil (fossil-scm).
Chance of exploitation in the next 30 days (EPSS): 0.36%, higher than 30.1% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
fossil fossil-scm	`= 2.18`	No fix yet

Description

Fossil 2.18 on Windows allows attackers to cause a denial of service (daemon crash) via an XSS payload in a ticket. This occurs because the ticket data is stored in a temporary file, and the product does not properly handle the absence of this file after Windows Defender has flagged it as malware.

References

fossil-scm.org/home/doc/trunk/www/changes.wiki · Vendor Advisory
gainsec.com/2022/07/27/cve-2022-34009 · Exploit

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