CVE-2026-58416 Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard)

High 7.1 Published Updated

Attackers can read private repository data via fork PR actions due to missing authorization checks in Gitea.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-58416?

CVE-2026-58416 is a high-severity missing authorization vulnerability in Gitea Open Source Git Server, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard)

Weakness: CWE-863, CWE-280

Which versions are affected by CVE-2026-58416?

3 open source packages ship an affected version, including gitea.dev.

PackageAffectedFixed in
gitea.dev GoAll versions1.27.0
gitea.dev GoAll versions1.27.0
gitea.dev GoAll versions1.27.0

How do I fix CVE-2026-58416?

Upgrade gitea.dev to 1.27.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-58416 being exploited?

There is no known exploitation of CVE-2026-58416 in the wild and no public exploit code.

Sources

Also known as GHSA-fj8v-hjwv-qm88, GO-2026-6052.

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