CVE-2026-20779

high

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.

References

https://github.com/go-gitea/gitea/security/advisories/GHSA-gx3v-q759-g323

https://latesthackingnews.com/2026/07/07/gitea-docker-vulnerability-exploitation/

https://github.com/go-gitea/gitea/releases/tag/v1.26.3

https://github.com/go-gitea/gitea/pull/38151

https://blog.gitea.com/release-of-1.26.3-and-1.26.4/

Details

Source: Mitre, NVD

Published: 2026-07-03

Updated: 2026-07-07

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N

Severity: High

CVSS v3

Base Score: 7.1

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