CVE-2026-86100CWE-918ssrf

CVE-2026-86100

Medium · published September 5, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
23.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00320 · 23.8th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-09-05T04:17Z
References (6)
https://github.com/owen2345/camaleon-cms · [email protected]https://github.com/owen2345/camaleon-cms/blob/2.9.1/app/helpers/camaleon_cms/uploader_helper.rb · [email protected]https://github.com/owen2345/camaleon-cms/commit/3c46b6e512518ded476226162305c8eae00aac3f · [email protected]https://github.com/owen2345/camaleon-cms/pull/1133 · [email protected]https://github.com/owen2345/camaleon-cms/releases/tag/2.9.2 · [email protected]https://www.vulncheck.com/advisories/camaleon-cms-2.7.5-through-2.9.1-ssrf-via-http-redirect-in-upload-from-url · [email protected]
EPSS history
Timeline
  • 09 SEP 03:20Z
    EPSS moved — → 0%
    epss
  • 04 SEP 23:16Z
    Camaleon CMS 2.7.5 through 2.9.1 SSRF via HTTP Redirect in Upload from URL
    cvelistv5