What is CVE-2026-9137?

CVE-2026-9137 is a high-severity vulnerability in Misp, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-05-20.

How severe is CVE-2026-9137?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Misp

CVE-2026-9137

The CSP report endpoint in MISP 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 g…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.001 (16.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Misp — versions 2.5.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

5a6e4751-2f3f-4070-9419-94fb35b644e8 (Patch, patch)

Frequently asked questions

What is CVE-2026-9137?: CVE-2026-9137 is a high-severity vulnerability in Misp, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-05-20.
How severe is CVE-2026-9137?: High severity. CVSS v3 base score is 7.5 out of 10.