CVE-2026-55987 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact total

Vendors	Products
Gitea	Gitea Open Source Git Server

No data.

No data.

References

Link	Providers
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

History

Fri, 14 Aug 2026 20:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Fri, 14 Aug 2026 10:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Gitea Gitea gitea Open Source Git Server
Vendors & Products		Gitea Gitea gitea Open Source Git Server

Thu, 13 Aug 2026 17:00:00 +0000

Type	Values Removed	Values Added
Description		OAuth2 sign-in reactivates an administrator-deactivated account on auth sources without refresh tokens (incomplete fix of #38009)
Title		OAuth2 sign-in reactivates an administrator-deactivated account on auth sources without refresh tokens (incomplete fix of #38009)
Weaknesses		CWE-863
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

MITRE

Status: PUBLISHED

Assigner: Gitea

Published: 2026-08-13T16:44:42.020Z

Updated: 2026-08-14T20:06:36.724Z

Reserved: 2026-07-08T09:19:08.000Z

Link: CVE-2026-55987

Vulnrichment

Updated: 2026-08-14T20:06:28.520Z

NVD

Status : Received

Published: 2026-08-13T17:17:25.063

Modified: 2026-08-14T20:16:53.387

Link: CVE-2026-55987

Redhat

No data.

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