CVE-2026-58426

CRITICAL 9.6EPSS 0.3%

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

CVSS v3.1: 9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS v3.1: 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, 22th percentile
Published: 2026-07-03
Updated: 2026-07-06

Proof-of-concept exploits (1)

advisories/GHSA-hg5r-vq93-9fv6

References

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