Critical severity · published Jul 3, 2026
CVE-2026-58426
Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write
9.6
CVSS
0.2%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GO
Gitea Open Source Git Server · Gitea
1.22.0 through 1.26.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-58426
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-58426
blog.gitea.com
https://blog.gitea.com/release-of-1.26.2/
github.com
https://github.com/go-gitea/gitea/pull/37707
github.com
https://github.com/go-gitea/gitea/releases/tag/v1.26.2
github.com
https://github.com/go-gitea/gitea/security/advisories/GHSA-hg5r-vq93-9fv6
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