CVE-2026-86100: Camaleon CMS 2.7.5 through 2.9.1 SSRF via HTTP Redirect in Upload from URL
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.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker needs an authenticated Camaleon CMS account and access to the Upload from URL media feature. Exploitation does not require user interaction.
Which deployments are affected?
Camaleon CMS versions 2.7.5 through 2.9.1 are affected. The issue applies where the Upload from URL media feature can fetch attacker-supplied remote URLs.
What does the attacker need to provide?
The attacker supplies a URL that passes the initial validation checks but redirects to an internal network address. The server follows the redirect and makes the request to the internal target.