CVE-2026-73800 Gitea reusable workflow secret exposure in pull_request_target
Attackers can execute arbitrary code and access secrets by modifying reusable workflows in forks when pull_request_target events are used.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73800?
CVE-2026-73800 is a high-severity code injection vulnerability in Gitea, published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Gitea resolves local reusable workflow files from a fork's head commit when a trusted base-branch workflow runs for a pull_request_target event. A fork author can modify a referenced reusable workflow so attacker-controlled code executes with the repository and organization secrets available to that event. Exploitation requires a base workflow that calls a local reusable workflow, and bypasses the intended separation between trusted base code and untrusted fork code.
Which versions are affected by CVE-2026-73800?
How do I fix CVE-2026-73800?
No fix has been published for CVE-2026-73800 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-73800 being exploited?
There is no known exploitation of CVE-2026-73800 in the wild and no public exploit code.
Sources
Also known as GHSA-r9ch-mqjm-g67v.