CVE-2026-58426

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

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

Affected

Gitea · Gitea Open Source Git Server

CVSS v3.1 CNA

9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

EPSS

0.30% chance of exploitation in the next 30 days, 21st percentile

Published

2026-07-03

Updated

2026-07-06

Proof-of-concept exploits (1)

• advisories/GHSA-hg5r-vq93-9fv6

References

• CVE Record
• NVD entry