CVE-2026-20779

HIGH 7.1

Gitea TOTP single-use enforcement defect allows OTP replay

CVSS Score

7.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-294
Vendor	gitea
Product	gitea open source git server
Published	Jul 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Affected Versions

Gitea / Gitea Open Source Git Server

1.5.0 < 1.26.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/go-gitea/gitea/security/advisories/GHSA-gx3v-q759-g323 github.com: https://github.com/go-gitea/gitea/pull/38151 github.com: https://github.com/go-gitea/gitea/releases/tag/v1.26.3 blog.gitea.com: https://blog.gitea.com/release-of-1.26.3-and-1.26.4/

Credits

🔍 Kript0r3x