{"id":"CVE-2026-58426","sourceIdentifier":"88ee5874-cf24-4952-aea0-31affedb7ff2","published":"2026-07-03T21:17:05.770","lastModified":"2026-07-06T18:17:26.860","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write"}],"affected":[{"source":"88ee5874-cf24-4952-aea0-31affedb7ff2","affectedData":[{"vendor":"Gitea","product":"Gitea Open Source Git Server","defaultStatus":"unaffected","versions":[{"version":"1.22.0","lessThanOrEqual":"1.26.1","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"88ee5874-cf24-4952-aea0-31affedb7ff2","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","baseScore":9.6,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.1,"impactScore":5.8}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-06T15:07:14.581616Z","id":"CVE-2026-58426","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"88ee5874-cf24-4952-aea0-31affedb7ff2","type":"Secondary","description":[{"lang":"en","value":"CWE-347"}]}],"references":[{"url":"https://blog.gitea.com/release-of-1.26.2/","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/pull/37707","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.26.2","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-hg5r-vq93-9fv6","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-hg5r-vq93-9fv6","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}