CVE-2026-20779 PUBLISHED

Gitea TOTP single-use enforcement defect allows OTP replay

Assigner: Gitea
Reserved: 03.03.2026 Published: 03.07.2026 Updated: 03.07.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
CVSS Score: 7.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	Low
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Gitea
Product	Gitea Open Source Git Server
Versions	Default: unaffected affected from 1.5.0 to 1.26.3 (excl.)

Credits

Kript0r3x reporter

References

GitHub Security Advisory
GitHub Pull Request #38151
Gitea v1.26.3 Release
Gitea v1.26.4 Release Blog Post

Problem Types

CWE-294 CWE