Vulnerability record · CVE-2026-26232 · published 3 July 2026

CVE-2026-26232: Authentication bypass by capture-replay vulnerability

Gitea versions before 1.25.5 do not consistently enforce OAuth2 authorization code expiry and single-use behavior during token exchange.

9.1 CVSS 3.1 Critical EPSS 0.50% · top 60.0% CWE-294 · Authentication bypass by capture-replay Deferred

9.1CVSS 3.1 base score

0.50%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

4References

7 Jul 2026Last modified by NVD

Description

Gitea versions before 1.25.5 do not consistently enforce OAuth2 authorization code expiry and single-use behavior during token exchange.

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

References

Link	Tags
https://blog.gitea.com/release-of-1.25.5/
https://github.com/go-gitea/gitea/pull/36797
https://github.com/go-gitea/gitea/pull/36851
https://github.com/go-gitea/gitea/releases/tag/v1.25.5

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-23397Microsoft Outlook improper input validation privilege escalationCVE-2023-23397 is a critical elevation of privilege flaw in Microsoft Outlook caused by improper input validation and an authentication bypass by cap…KEVEPSS 97%analysed14 Mar 2023

Source: NIST National Vulnerability Database (record CVE-2026-26232), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.