Is CVE-2026-20912 actively exploited?

CVE-2026-20912 has no public evidence of in-the-wild exploitation as of 2026-01-29.

What is the CVSS score for CVE-2026-20912?

CVE-2026-20912 has a CVSS score of 9.1 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

How do I patch CVE-2026-20912?

Patch guidance is available from gitea security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-20912.

Fix CVE-2026-20912 - CRITICAL gitea gitea

Description

Gitea does not properly validate repository ownership when linking attachments to releases. An attachment uploaded to a private repository could potentially be linked to a release in a different public repository, making it accessible to unauthorized users.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: none
Weaknesses: CWE-284 CWE-639

Metadata

Primary Vendor: GITEA
Published: 1/22/2026
Last Modified: 1/29/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-20912

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary