CVE-2026-72591 Koito - Authenticated Server-Side Request Forgery via Album Image URL Parameter
Authenticated attackers can force the Koito server to make arbitrary HTTP requests via the album image URL parameter, potentially accessing internal resources.
- 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-2026-72591?
CVE-2026-72591 is a high-severity server-side request forgery vulnerability in gabehf Koito, published on 10 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A server-side request forgery (SSRF) vulnerability in gabehf/Koito through v0.3.2 allows an authenticated user to make the server perform HTTP requests to arbitrary internal or external hosts by supplying a crafted image_url value in the PATCH /apis/web/v1/album/{id}/image endpoint.
Weakness: CWE-918
Which versions are affected by CVE-2026-72591?
How do I fix CVE-2026-72591?
No fix has been published for CVE-2026-72591 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-2026-72591 being exploited?
There is no known exploitation of CVE-2026-72591 in the wild and no public exploit code.
Sources
Also known as GHSA-hwrh-8qfp-c4p6.