CVE-2026-20904— Gitea: Broken access control in OpenID visibility toggle enables cross-user visibility changes
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I. Basic Information for CVE-2026-20904
Vulnerability Information
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Vulnerability Title
Gitea: Broken access control in OpenID visibility toggle enables cross-user visibility changes
Source: NVD (National Vulnerability Database)
Vulnerability Description
Gitea does not properly validate ownership when toggling OpenID URI visibility. An authenticated user may be able to change the visibility settings of other users' OpenID identities.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Gitea 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gitea是Gitea社区的一个基于Go开发的轻量型git服务。 Gitea存在安全漏洞，该漏洞源于切换OpenID URI可见性时未正确验证所有权，可能导致经过身份验证的用户更改其他用户的OpenID身份可见性设置。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Gitea | Gitea Open Source Git Server | 0 ~ 1.25.3 | - |
II. Public POCs for CVE-2026-20904
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Gitea · 2026-01-22 · 9 CVEs total
| CVE-2026-0798 | Gitea Release Email Notifications Leak Private Repository Release Details After Access Rev | |
| CVE-2026-20912 | Gitea: Cross-Repository Authorization Bypass via Release Attachment Linking Leads to Priva | |
| CVE-2026-20883 | Gitea Stopwatch API Missing Authorization Check Leads to Post-Revocation Information Discl | |
| CVE-2026-20750 | Gitea Organization Projects Cross-Organization Authorization Bypass via Project ID (IDOR) | |
| CVE-2026-20888 | Gitea Pull Requests Auto-Merge: Read-Only Users Can Cancel Scheduled Auto-Merge via Web En | |
| CVE-2026-20800 | Notification API Leaks Private Repository Issue Titles After Collaborator Permission Revoc | |
| CVE-2026-20897 | Gitea Git LFS Lock Deletion Broken Access Control (Cross-Repo IDOR) | |
| CVE-2026-20736 | Gitea Web Attachment Deletion: Cross-Repository Unauthorized Deletion via Missing Repo Own |
IV. Related Vulnerabilities
Same product: Gitea Open Source Git Server
- CVE-2026-20897
Gitea Git LFS Lock Deletion Broken Access Control (Cross-Rep - CVE-2026-20912
Gitea: Cross-Repository Authorization Bypass via Release Att - CVE-2026-20883
Gitea Stopwatch API Missing Authorization Check Leads to Pos - CVE-2026-20888
Gitea Pull Requests Auto-Merge: Read-Only Users Can Cancel S - CVE-2026-20736
Gitea Web Attachment Deletion: Cross-Repository Unauthorized
Same vendor: Gitea
- CVE-2026-20897
Gitea Git LFS Lock Deletion Broken Access Control (Cross-Rep - CVE-2026-20912
Gitea: Cross-Repository Authorization Bypass via Release Att - CVE-2026-20883
Gitea Stopwatch API Missing Authorization Check Leads to Pos - CVE-2026-20888
Gitea Pull Requests Auto-Merge: Read-Only Users Can Cancel S - CVE-2026-20736
Gitea Web Attachment Deletion: Cross-Repository Unauthorized
Same weakness: CWE-284
- CVE-2026-8233
Dotouch XproUPF access control - CVE-2026-42569
phpvms: /importer authorization bypass causing full database - CVE-2026-42205
Avo: Broken Access Control: Unauthorized Execution of Arbitr - CVE-2026-41487
Langfuse: Improper role-based-access control in Langfuse LLM - CVE-2026-42278
UltraDAG: Smart Account Spending Policy Bypass via Pockets
V. Comments for CVE-2026-20904
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