Auth bypass in Misp
CVE-2026-56424
MISP core contained multiple broken access-control flaws where authorization checks were performed against the wrong entity, or where ownership/editability checks were missing on write paths. In affected subsystems, a lower-privileged auth…
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.004 (28.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Misp — versions 0
- Misp-project Misp
Weakness classification (CWE)
References
- 5a6e4751-2f3f-4070-9419-94fb35b644e8 (Patch, patch)
- 5a6e4751-2f3f-4070-9419-94fb35b644e8 (Patch, patch)
- 5a6e4751-2f3f-4070-9419-94fb35b644e8 (Patch, patch)
- 5a6e4751-2f3f-4070-9419-94fb35b644e8 (Patch, patch)
- 5a6e4751-2f3f-4070-9419-94fb35b644e8 (Patch, patch)
Frequently asked questions
- What is CVE-2026-56424?
- CVE-2026-56424 is a high-severity vulnerability in Misp, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2026-06-22.
- How severe is CVE-2026-56424?
- High severity. CVSS v3 base score is 8.8 out of 10.