CVE-2026-78433: medium-severity vulnerability in Gitea
Gitea private attachment disclosure through repository mismatch
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.4%
Gitea's web attachment handler skips its cross-repository ownership check for attachments created before 16 January 2026 and checks permissions against the repository named in the request URL instead. An unauthenticated attacker who knows a private attachment's UUID can request it through a public repository's attachment path and retrieve its contents. This can expose issue and pull request attachments or release assets; the random attachment UUID must already be known to the attacker.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Gitea · GiteaRelated CVEs — Gitea
In the same product, most dangerous first.
CVE-2026-60004CRITICALCVE-2026-60004EPSS 24.0%KEVCVE-2026-59774CRITICALGitea Org-mode file disclosure and code executionEPSS 28.3%CVE-2019-1010314—CVE-2019-1010314EPSS 0.8%CVE-2019-1010261—CVE-2019-1010261EPSS 0.8%CVE-2026-94205CRITICALGitea fork workflow approval bypass through maintainer-triggered eventsEPSS 0.6%CVE-2026-96404HIGHGitea installer authentication bypass for existing accountsEPSS 0.6%