High 7.1Published Jul 3, 2026

CVE-2026-20779Gitea TOTP single-use enforcement defect allows OTP replay

Updated under an hour ago (Oct 27, 2026, 1:30 AM ET)

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It affects Gitea Open Source Git Server. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Gitea Open Source Git Server

Exploited in the last 30 days

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.

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Weakness (CWE): CWE-294
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Gitea
NVD analysis: Deferred
Record last updated: Jul 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Gitea Gitea Open Source Git Server gitea:open_source_git_server (from the name)	from 1.5.0 before 1.26.3	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.