Critical 9.6Published Jul 3, 2026

CVE-2026-58426Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write

Updated under an hour ago (2026-10-19 07:30 UTC)

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Exploited in the last 30 days

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

CVSS: 9.6 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-347
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Deferred
Record last updated: Jul 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

No affected products are listed yet.

References

https://blog.gitea.com/release-of-1.26.2/
https://github.com/go-gitea/gitea/pull/37707
https://github.com/go-gitea/gitea/releases/tag/v1.26.2
https://github.com/go-gitea/gitea/security/advisories/GHSA-hg5r-vq93-9fv6

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.