CVE-2026-86100
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/owen2345/camaleon-cms
- https://github.com/owen2345/camaleon-cms/blob/2.9.1/app/helpers/camaleon_cms/uploader_helper.rb
- https://github.com/owen2345/camaleon-cms/commit/3c46b6e512518ded476226162305c8eae00aac3f
- https://github.com/owen2345/camaleon-cms/pull/1133
- https://github.com/owen2345/camaleon-cms/releases/tag/2.9.2
- https://www.vulncheck.com/advisories/camaleon-cms-2.7.5-through-2.9.1-ssrf-via-http-redirect-in-upload-from-url
CWEs
CWE-918
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.