CVE-2026-58426: critical vulnerability in Gitea Open Source Git Server
Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.6epss 0.2%
Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Affected products
Gitea · Gitea Open Source Git ServerRelated CVEs — Gitea Open Source Git Server
In the same product, most dangerous first.
CVE-2024-6886CRITICALInproper Sanitation of field leading to stored XSSEPSS 33.0%CVE-2026-20896CRITICALGitea Docker image trusts spoofable reverse-proxy headers by defaultEPSS 2.8%CVE-2026-27771HIGHGitea Composer package source links use insufficient permission checksEPSS 1.4%CVE-2026-27775HIGHGitea pre-receive hook permission cache allows full repository write accessEPSS 0.9%CVE-2026-56654CRITICALPrivilege Escalation via Access Token Scope Escalation in APIEPSS 0.8%CVE-2026-26292CRITICALGitea LFS mirror synchronization bypasses migration HTTP transport restrictionsEPSS 0.7%