CVE-2026-9137

Description

The CSP report endpoint intended to limit logged CSP reports to 1 KB but incorrectly allowed reports up to 1 MB before truncation. On deployments where the endpoint is reachable by untrusted clients, this could allow attackers to generate excessive log volume and contribute to resource exhaustion or log flooding.

References

• https://github.com/MISP/MISP/commit/02932cccab230b295afcaf5aa05e363d30db0ec9