CVE record

CVE-2026-58426

Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write

Known exploitation

Not listed in fetched KEV catalog

Absence from the fetched catalog does not establish that exploitation has not occurred.

Severity

critical

CVSS 9.6 · CVSS_V3

Affected packages

Supported package records returned by OSV. Vendor and product names are not used to infer matches.

OSV package mapping

Affected open-source packages

Package	Ecosystem	Fixed versions
code.gitea.io/gitea	go	1.26.2