Gogs up to 0.14.2 /api/v1/repos reqRepoWriter authorization

Summaryinfo

A vulnerability categorized as problematic has been discovered in Gogs up to 0.14.2. This affects the function reqRepoWriter of the file /api/v1/repos. Executing a manipulation can lead to authorization. This vulnerability is tracked as CVE-2026-52808. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Gogs up to 0.14.2 and classified as problematic. This vulnerability affects the function reqRepoWriter of the file /api/v1/repos. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect integrity, and availability. CVE summarizes:

Gogs is an open source self-hosted Git service. Prior to 0.14.3, three API endpoints — PATCH /api/v1/repos/:owner/:repo/issue-tracker, PATCH /api/v1/repos/:owner/:repo/wiki, and POST /api/v1/repos/:owner/:repo/mirror-sync — are gated by reqRepoWriter() rather than reqRepoAdmin(). The equivalent operations in the web UI sit behind reqRepoAdmin, which requires AccessMode >= AccessModeAdmin. A write-level collaborator (who has AccessMode == AccessModeWrite < AccessModeAdmin) can therefore call these API endpoints directly to disable the native issue tracker or wiki, inject attacker-controlled external tracker/wiki URLs that redirect all repository visitors, or trigger mirror sync — none of which they are authorized to do. This vulnerability is fixed in 0.14.3.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-52808 since 06/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available.

Upgrading to version 0.14.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 6283462119bd8894f1599d70339b5e823f99954a 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Gogs

Version

• 0.14.0
• 0.14.1
• 0.14.2

License

• open-source

Website

• Product: https://github.com/gogs/gogs/

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Once again VulDB remains the best source for vulnerability data.

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