CVE-2026-95813
Description
e621ng versions before 26.09.16 pass untrusted request parameters directly to Rails url_for in PaginatorComponent and controller navigation links, allowing attackers to redirect pagination and navigation controls to attacker-controlled origins. Attackers can supply host, protocol, and port query parameters that are interpreted as URL generation options, causing pagination links to point to malicious domains while the initial page loads from the legitimate site.
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/e621ng/e621ng
- https://github.com/e621ng/e621ng/blob/26.09.02/app/components/paginator_component.rb
- https://github.com/e621ng/e621ng/commit/e1a3930bf1750b02a23843ec88c33e2aa06e2a5e
- https://github.com/e621ng/e621ng/pull/2518
- https://github.com/e621ng/e621ng/releases/tag/26.09.16
- https://www.vulncheck.com/advisories/e621ng-before-26.09.16-open-redirect-via-url-parameters
CWEs
CWE-601
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.