Vulnerability · Published Nov 1, 2026 · Assigned by Gitea

CVE-2026-117685Gitea public-only package token access to private OCI blobs

Unrated

In plain English

A incorrect authorization in Gitea from Gitea. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS )–Not rated

Exploit odds (30 days)0.1%top 95.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

The OCI registry's cross-repository blob mount checked the target package against the token's `public-only` restriction, but checked the source blob only against the full account permissions of the token owner. A `public-only` token with `write:package` scope, whose owner can read a private package and write to a public package namespace, could mount a blob of the private package into the public package. The private blob, such as a container layer, could then be downloaded by anyone through the public package.

Affected products (as reported)

Vendor	Product	Versions
Gitea	Gitea	0 – before 28.3.0

Weakness: CWE-863

References

GitHub Security Advisory GHSA-8g99-g36h-5p2w vendor-advisory
Fix: go-gitea/gitea pull request #39690 patch
Fix backport to release/v28: go-gitea/gitea pull request #39853 patch
Gitea 28.3.0 release announcement release-notes
go-gitea/gitea v28.3.0 release release-notes