CVE-2026-128359
Gitea OAuth2 provider tokens issued to disabled users
Description
When Gitea acts as an OAuth2 or OpenID Connect provider, the token endpoint did not check the state of the user. After an administrator deactivated an account or prohibited its sign-in, existing refresh tokens and unused authorization codes of that user could still be exchanged for new tokens, so applications that sign users in through Gitea kept them signed in. The token endpoint now refuses users who may not sign in, and token introspection reports their tokens as inactive.
INFO
Published Date :
Nov. 15, 2026, 10:17 p.m.
Last Modified :
Nov. 15, 2026, 10:17 p.m.
Remotely Exploit :
No
Source :
88ee5874-cf24-4952-aea0-31affedb7ff2
Solution
- Update Gitea to the latest version.
- Ensure token introspection is properly configured.
- Validate user status before issuing tokens.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-128359.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-128359 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-128359
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-128359 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-128359 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 88ee5874-cf24-4952-aea0-31affedb7ff2
Nov. 15, 2026
Action Type Old Value New Value Added Description When Gitea acts as an OAuth2 or OpenID Connect provider, the token endpoint did not check the state of the user. After an administrator deactivated an account or prohibited its sign-in, existing refresh tokens and unused authorization codes of that user could still be exchanged for new tokens, so applications that sign users in through Gitea kept them signed in. The token endpoint now refuses users who may not sign in, and token introspection reports their tokens as inactive. Added CWE CWE-613 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/128xxx/CVE-2026-128359.json">CVE-2026-128359</a> Added Reference https://blog.gitea.com/release-of-28.4.0/ Added Reference https://github.com/go-gitea/gitea/pull/40131 Added Reference https://github.com/go-gitea/gitea/pull/40281 Added Reference https://github.com/go-gitea/gitea/releases/tag/v28.4.0 Added Reference https://github.com/go-gitea/gitea/security/advisories/GHSA-jrjr-q3rq-f899