CVE-2026-86100 Camaleon CMS 2.7.5 through 2.9.1 SSRF via HTTP Redirect in Upload from URL
Authenticated attackers can exploit SSRF in Camaleon CMS's Upload from URL feature to access internal network services via redirect validation flaws.
- 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-2026-86100?
CVE-2026-86100 is a medium-severity server-side request forgery vulnerability in owen2345 CamaleonCMS, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Camaleon CMS versions 2.7.5 through 2.9.1 fail to validate redirect targets when fetching remote files in the Upload from URL media feature. Authenticated attackers can supply URLs that pass initial validation but redirect to internal network addresses, allowing server-side request forgery to internal services.
Weakness: CWE-918
Which versions are affected by CVE-2026-86100?
How do I fix CVE-2026-86100?
No fix has been published for CVE-2026-86100 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-2026-86100 being exploited?
There is no known exploitation of CVE-2026-86100 in the wild and no public exploit code.
Sources
Also known as GHSA-jp7r-j75c-hg5q.