CVE-2026-86100 json
Camaleon CMS 2.7.5 through 2.9.1 SSRF via HTTP Redirect in Upload from URL
published 2026-09-04 2 mo ago modified 2026-09-08 2 mo ago also EUVD-2026-71796
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 25%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- owen2345 CamaleonCMS 2.9.2
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 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 |
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| CNA | 4.0 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- owen2345 CamaleonCMS
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/owen2345/camaleon-cms/pull/1133
patch, issue-tracking
-
github.com
/owen2345/camaleon-cms/commit/3c46b6e512518ded476226162305c8eae00aac3f
patch
-
github.com
/owen2345/camaleon-cms
product
-
github.com
/owen2345/camaleon-cms/blob/2.9.1/app/helpers/camaleon_cms/uploader_helper.rb
technical-description
-
github.com
/owen2345/camaleon-cms/releases/tag/2.9.2
release-notes
-
vulncheck.com
/advisories/camaleon-cms-2.7.5-through-2.9.1-ssrf-via-http-redirect-in-upload-from-url
third-party-advisory
Sources
- CVE List CVE-2026-86100
- NVD CVE-2026-86100
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.