CVE-2026-110311: Gitea draft release creation disclosing attachment metadata

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-18 · updated 2026-10-19
Weakness: CWE-200

Description

Creating a draft release through the API returned an `assets` list that was built from a release without an ID, which matched every attachment that was not linked to a release. A user who could create a draft release in a repository therefore received the metadata (file name, UUID, upload time, size and download count) of issue and comment attachments of repositories they could not read, and of abandoned uploads.

Affected products

Gitea Open Source Git Server: from 1.22.0 through 28.1.0

References

https://blog.gitea.com/release-of-28.2.0/
https://github.com/go-gitea/gitea/pull/39743
https://github.com/go-gitea/gitea/pull/39752
https://github.com/go-gitea/gitea/releases/tag/v28.2.0
https://github.com/go-gitea/gitea/security/advisories/GHSA-8j56-f865-gqq2

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