Gitea up to 1.25.3 Web Interface access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Gitea up to 1.25.3. Affected is an unknown function of the component Web Interface. Such manipulation leads to access control. This vulnerability is documented as CVE-2026-20888. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Gitea up to 1.25.3. Affected by this issue is an unknown part of the component Web Interface. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-20888 since 01/09/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

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-2026-4265) and CERT Bund (WID-SEC-2026-0200). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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-ccq9-c5hv-cf64
Status: Confirmed

CVE: CVE-2026-20888 (🔒)
GCVE (CVE): GCVE-0-2026-20888
GCVE (VulDB): GCVE-100-342506
EUVD: 🔒
CERT Bund: WID-SEC-2026-0200 - Gitea: Mehrere Schwachstellen

Entryinfo

Created: 01/23/2026 08:03
Updated: 01/24/2026 09:06
Changes: 01/23/2026 08:03 (57), 01/24/2026 07:02 (1), 01/24/2026 09:06 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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