Gitea Docker image: `REVERSE_PROXY_TRUSTED_PROXIES = *` default lets any source IP impersonate any user via `X-WEBAUTH-USER`

Summary The Gitea Docker images ship an app.ini template that hard-codes: REVERSEPROXYTRUSTEDPROXIES = The documented default for this setting, in custom/conf/app.example.ini, is 127.0.0.0/8,::1/128, i.e. only loopback is trusted. When an admin enables ENABLEREVERSEPROXYAUTHENTICATION = true to p...

GHSA-2R5C-GW76-RH3W Gitea: Incomplete SSRF Protection in Webhook and Migration Allow-list Default Filter

Summary Gitea's default SSRF allow-list MatchBuiltinExternal, used by both webhook delivery and repository migrations relies on Go's standard library net.IP.IsPrivate, which only covers RFC 1918 and RFC 4193. As a result, several IP ranges commonly used for cloud metadata services, internal...

EUVD-2026-41618

Gitea: Incomplete SSRF Protection in Webhook and Migration Allow-list Default Filter...

GHSA-RJVX-X5H2-6PX5 Gitea: API Fork Endpoint Authorization Bypass Allows Organization Members to Bypass Repository Creation Restrictions

Summary The API endpoint used to fork repositories into organizations performs a weaker authorization check than the corresponding web UI and other repository creation endpoints. When a repository is forked into an organization through the API, the endpoint only verifies that the user is an...

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...

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: Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload

Gitea's Debian package registry parser contains an unbounded decompression vulnerability in ParseControlFile. When processing an uploaded .deb file, the parser decompresses control.tar.gz and copies the entire uncompressed stream into a strings.Builder via a TeeReader, with no limit on how much...

GHSA-6HM7-3PWJ-22RM Gitea: Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload

Gitea's Debian package registry parser contains an unbounded decompression vulnerability in ParseControlFile. When processing an uploaded .deb file, the parser decompresses control.tar.gz and copies the entire uncompressed stream into a strings.Builder via a TeeReader, with no limit on how much...

Gitea: Private Repository Existence Disclosure via go-get Meta Endpoint

| Field | Value | |-------|-------| | Affected File | routers/web/repo/githttp.go, services/context/repo.go | | Affected Functions | httpBase, EarlyResponseForGoGetMeta | | Affected Lines | githttp.go:63–66, services/context/repo.go:374–396 | | Prerequisite | None — fully unauthenticated | ---...

Exposure of Sensitive Information Through Metadata

Overview Affected versions of this package are vulnerable to Exposure of Sensitive Information Through Metadata via the EarlyResponseForGoGetMeta function. An attacker can obtain sensitive repository metadata, such as the existence of private repositories, their clone URLs, and default branch...

Exposure of Sensitive Information Through Metadata

Overview Affected versions of this package are vulnerable to Exposure of Sensitive Information Through Metadata via the EarlyResponseForGoGetMeta function. An attacker can obtain sensitive repository metadata, such as the existence of private repositories, their clone URLs, and default branch...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the attachment update. An attacker can access private attachment content by re-linking a known attachment UUID to an issue or comment in a repository they control, causing authorization checks to be performed...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the attachment update. An attacker can access private attachment content by re-linking a known attachment UUID to an issue or comment in a repository they control, causing authorization checks to be performed...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the attachment update. An attacker can access private attachment content by re-linking a known attachment UUID to an issue or comment in a repository they control, causing authorization checks to be performed...