Gitea: Public-only repository tokens can update private PR head branches

Summary Gitea allows a public-only,write:repository token to update a private pull request head branch through a public base repository route. The vulnerable endpoint is: text POST /api/v1/repos/public-owner/public-repo/pulls/index/update Gitea checks the token's public-only restriction against t...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization through the UpdatePullRequest function. An attacker can cause unauthorized modifications to private repository branches by exploiting a logic flaw in token scope validation during pull request updates from a publ...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization through the UpdatePullRequest function. An attacker can cause unauthorized modifications to private repository branches by exploiting a logic flaw in token scope validation during pull request updates from a publ...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization through the UpdatePullRequest function. An attacker can cause unauthorized modifications to private repository branches by exploiting a logic flaw in token scope validation during pull request updates from a publ...

EUVD-2026-41634

Gitea: API access token scope enforcement bypass on repository RSS/Atom feed endpoints leaks private repository commit data...

GHSA-3PWW-VCVM-3GMJ Gitea: API access token scope enforcement bypass on repository RSS/Atom feed endpoints leaks private repository commit data

Summary A Gitea personal access token PAT restricted to a non-repository scope e.g. read:issue can read the commit history of any private repository the token owner can access, via the repository RSS/Atom feed endpoints. The same token is correctly denied 403 on /raw, /media, /archive, and the...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the CreateAccessToken process. An attacker can gain elevated privileges by supplying a restricted token in the Authorization: Basic :x-oauth-basic format, which bypasses authentication checks and allows...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the CreateAccessToken process. An attacker can gain elevated privileges by supplying a restricted token in the Authorization: Basic :x-oauth-basic format, which bypasses authentication checks and allows...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the CreateAccessToken process. An attacker can gain elevated privileges by supplying a restricted token in the Authorization: Basic :x-oauth-basic format, which bypasses authentication checks and allows...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the CreateAccessToken process. An attacker can gain elevated privileges by supplying a restricted token in the Authorization: Basic :x-oauth-basic format, which bypasses authentication checks and allows...

GHSA-683J-3FF6-HH2X Gitea: Privilege Escalation via Access Token Scope Escalation in API

Gitea's API endpoint for creating Personal Access Tokens POST /users/username/tokens is protected by a middleware reqBasicOrRevProxyAuth that is intended to require password-based authentication, preventing a compromised token from being used to mint new ones. However, when a token is passed in t...

Gitea: Privilege Escalation via Access Token Scope Escalation in API

Gitea's API endpoint for creating Personal Access Tokens POST /users/username/tokens is protected by a middleware reqBasicOrRevProxyAuth that is intended to require password-based authentication, preventing a compromised token from being used to mint new ones. However, when a token is passed in t...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the CreateAccessToken process. An attacker can gain elevated privileges by supplying a restricted token in the Authorization: Basic :x-oauth-basic format, which bypasses authentication checks and allows...

Gitea: OAuth token introspection returns metadata of tokens issued to other clients (RFC 7662 section 4 violation)

Live reproduction against Gitea 1.26.1 Setup: Gitea 1.26.1 docker stack with two users admin and victim and two OAuth applications owned by different users: Client A: id=5dda747d-7fdd-4694-85ff-ce4f893ce51e owner=admin Client B: id=588f778f-4a41-4914-ae01-85d776c369db owner=victim admin runs an...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization in the IntrospectOAuth process. An attacker can access sensitive metadata about tokens issued to other clients by submitting a valid token to the introspection endpoint using their own OAuth application's...

GHSA-VXV2-8J6R-PCPG Gitea: OAuth token introspection returns metadata of tokens issued to other clients (RFC 7662 section 4 violation)

Live reproduction against Gitea 1.26.1 Setup: Gitea 1.26.1 docker stack with two users admin and victim and two OAuth applications owned by different users: Client A: id=5dda747d-7fdd-4694-85ff-ce4f893ce51e owner=admin Client B: id=588f778f-4a41-4914-ae01-85d776c369db owner=victim admin runs an...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization in the IntrospectOAuth process. An attacker can access sensitive metadata about tokens issued to other clients by submitting a valid token to the introspection endpoint using their own OAuth application's...

Gitea Remember-Me Token Theft Not Invalidating Attacker Session

The vulnerability is in the Remember-Me giteaincredible token validation logic, specifically when handling a compromised token hash mismatch. The vulnerable function is this one: https://github.com/go-gitea/gitea/blob/689ace1ce28fd74244b8aa335d9928cdbf6b22f9/services/auth/authtoken.goL33-L64...

Insufficient Session Expiration

Overview Affected versions of this package are vulnerable to Insufficient Session Expiration in the CheckAuthToken function. An attacker can maintain unauthorized, persistent access to a user's account by reusing a stolen Remember-Me token, as the compromised session is not invalidated even after...

GHSA-7P4H-3GXQ-X3H3 Gitea: Token public-only scope bypassed on Limited-visibility owners (Repository + Package categories) — residual after CVE-2026-25714 / PR #37118

Summary After PR 37118 / CVE-2026-25714 fix: Unify public-only token filtering in API queries and repo access checks, merged 2026-05-18, backport 37773 to 1.26.2 — the May 2026 unification pass for public-only token filtering, reporter Medoedus per the 1.26.2 release notes, the public-only PAT...