Auth bypass in Misp
CVE-2026-44380
MISP is an open source threat intelligence and sharing platform. Prior to 2.5.37, an improper access control vulnerability in the authentication key reset functionality allowed an authenticated organization administrator to reset authentication keys belonging to site administrator accounts within the same organization. Because non-site administrators were not explicitly prevented from accessing or resetting site administrator auth keys, an attacker with organization administrator privileges could potentially obtain a newly generated auth key for a higher-privileged account and use it to escalate privileges. This vulnerability is fixed in 2.5.37.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
- Misp — versions < 2.5.37
- Misp-Project Misp
Weakness classification (CWE)
References
- github.com/MISP/MISP/security/advisories/GHSA-3939-4g6m-m3hc (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-44380?
- CVE-2026-44380 is a high-severity vulnerability in Misp, classified under Incorrect Authorization. CVSS score: 7.2/10. Published 2026-05-13.
- How severe is CVE-2026-44380?
- High severity. CVSS v3 base score is 7.2 out of 10.