High severityNVD Advisory· Published Jul 3, 2026· Updated Jul 7, 2026
Gitea TOTP single-use enforcement defect allows OTP replay
CVE-2026-20779
Description
Gitea versions from 1.5.0 before 1.26.3 have a TOTP single-use enforcement defect that allows a valid TOTP code to be accepted more than once across web two-factor authentication flows and the Basic Auth X-Gitea-OTP path.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
code.gitea.io/giteaGo | >= 1.5.0, < 1.26.3 | 1.26.3 |
Affected products
1Patches
Vulnerability mechanics
References
8- github.com/go-gitea/gitea/pull/38151ghsapatchWEB
- github.com/advisories/GHSA-gx3v-q759-g323ghsaADVISORY
- github.com/go-gitea/gitea/security/advisories/GHSA-gx3v-q759-g323ghsavendor-advisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-20779ghsaADVISORY
- blog.gitea.com/release-of-1.26.3-and-1.26.4ghsaWEB
- blog.gitea.com/release-of-1.26.3-and-1.26.4/mitrerelease-notes
- github.com/go-gitea/gitea/commit/99f8b3d9a1d32f4c39828e07971455a18191e0b9ghsaWEB
- github.com/go-gitea/gitea/releases/tag/v1.26.3ghsarelease-notesWEB
News mentions
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