What’s Vulnerable › Vulnerabilities

CVE-2026-55987: OAuth2 sign-in reactivates an administrator-deactivated account on auth sources without refresh tokens (incomplete fix of #38009)

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-13 · updated 2026-08-26
• Weakness: CWE-863

Description

OAuth2 sign-in reactivates an administrator-deactivated account on auth sources without refresh tokens (incomplete fix of #38009)

Affected products

• Gitea Open Source Git Server: through 1.26.4

References

• https://blog.gitea.com/gitea-1.27.0-is-released/
• https://github.com/go-gitea/gitea/releases/tag/v1.27.0
• https://github.com/go-gitea/gitea/security/advisories/GHSA-vrhc-jjfc-m3m3
• https://github.com/go-gitea/gitea/security/advisories/GHSA-vrhc-jjfc-m3m3

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