Gitea up to 1.27.2 Reusable Workflow improper authorization

Summaryinfo

A vulnerability classified as problematic was found in Gitea up to 1.27.2. This affects an unknown function of the component Reusable Workflow. Executing a manipulation can lead to improper authorization. The identification of this vulnerability is CVE-2026-63792. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Gitea up to 1.27.2 and classified as problematic. This vulnerability affects an unknown function of the component Reusable Workflow. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality. CVE summarizes:

Gitea's collaborative-owner authorization path for reading cross-repository reusable workflows does not exclude fork pull request runs. An approved fork workflow targeting a private repository can read workflow files from another private repository that trusts the base repository's owner through collaborative-owner configuration. The issue exposes private reusable workflow contents at caller-selected Git refs; it does not itself grant write access or code execution in the other repository.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-63792 since 08/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/14/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• Gitea

Version

• 1.27.0
• 1.27.1
• 1.27.2

License

• open-source

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