CVE-2026-20779
CVSS v3
7.1
HIGH
EPSS Score
0.5 %
exploit probability, as of 2026-10-13
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- code.gitea.io/giteaGofrom 1.5.0 · fixed in 1.26.3
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.
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
- Published
- 2026-07-03
- Last Modified
- 2026-07-03
- GitHub Advisory
- GHSA-gx3v-q759-g323
Frequently asked questions
What is CVE-2026-20779?
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.
Is CVE-2026-20779 actively exploited?
Active exploitation of CVE-2026-20779 has not been confirmed. Its EPSS score was 0.5% on 2026-10-13, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-20779?
CVE-2026-20779 has a CVSS v3 base score of 7.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N.
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