Gitea up to 1.25.3 OpenID URI access control

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Gitea up to 1.25.3. Impacted is an unknown function of the component OpenID URI Handler. This manipulation causes access control. This vulnerability appears as CVE-2026-20904. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Gitea up to 1.25.3. Affected by this vulnerability is some unknown processing of the component OpenID URI Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-20904 since 01/09/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 1.25.4 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-4262) and CERT Bund (WID-SEC-2026-0200). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Open Source Gitea

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Gitea 1.25.4
Patch: github.com

Timelineinfo

01/09/2026 CVE reserved
01/23/2026 +14 days Advisory disclosed
01/23/2026 +0 days VulDB entry created
01/24/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-jrpc-w85r-hgqx
Status: Confirmed

CVE: CVE-2026-20904 (🔒)
GCVE (CVE): GCVE-0-2026-20904
GCVE (VulDB): GCVE-100-342523
EUVD: 🔒
CERT Bund: WID-SEC-2026-0200 - Gitea: Mehrere Schwachstellen

Entryinfo

Created: 01/23/2026 08:14
Updated: 01/24/2026 09:06
Changes: 01/23/2026 08:14 (57), 01/24/2026 07:02 (1), 01/24/2026 09:06 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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