CVE-2026-90814 cosmicstack-labs mercury-agent GitHub API github.ts githubRequest server-side request forgery
Attacker can exploit server-side request forgery in the GitHub API handler to access internal resources or bypass security controls.
- 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-2026-90814?
CVE-2026-90814 is a medium-severity server-side request forgery vulnerability in cosmicstack-labs mercury-agent, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in cosmicstack-labs mercury-agent up to 1.1.13. Affected by this vulnerability is the function githubRequest of the file src/utils/github.ts of the component GitHub API Handler. This manipulation of the argument path causes server-side request forgery. Remote exploitation of the attack is possible. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Weakness: CWE-918
Which versions are affected by CVE-2026-90814?
How do I fix CVE-2026-90814?
No fix has been published for CVE-2026-90814 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-90814 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90814 exists.
Sources
Also known as GHSA-fwp2-vg7p-f8x2.