What’s Vulnerable › Vulnerabilities

CVE-2026-26232: Gitea OAuth2 authorization codes lack expiry and reuse enforcement

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-03 · updated 2026-10-25
• Weakness: CWE-294

Description

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

Affected products

• Gitea Open Source Git Server: before 1.25.5 — fixed in 1.25.5

How to fix

Upgrade to a fixed version: Gitea Open Source Git Server 1.25.5. Check the vendor advisory for mitigations.

References

• 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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