PatchTheCVECVE-2026-44379: MISP is an open source threat intelligence and sharing platform
CVE-2026-44379 is a medium-severity flaw (CVSS 5.3) affecting misp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
MISP is an open source threat intelligence and sharing platform. Prior to 2.5.37, MISP Collections did not enforce RFC 4122 UUID validation on the uuid field. As a result, a user able to create or modify Collection records could submit malformed UUID values, potentially causing integrity issues or unexpected behaviour in code paths that assume Collection UUIDs are valid identifiers. This vulnerability is fixed in 2.5.37.
Why this priority
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 93%) |
| CISA exploited list | No |
| Weakness | CWE-20 |
| Published | 2026-05-13 |
| Last modified | 2026-06-22 |
Last updated 2026-06-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-44379?
misp: upgrade to 2.5.37. Exact commands for each OS are on this page.
Is CVE-2026-44379 being exploited?
CVE-2026-44379 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-44379 affect?
CVE-2026-44379 affects misp. Severity is medium (CVSS 5.3). MISP is an open source threat intelligence and sharing platform. Prior to 2.5.37, MISP Collections did not enforce RFC 4122 UUID validation on the uuid field. As a result, a user able to create or modify Collection records could submit malf
How urgent is CVE-2026-44379?
Priority 25/100. Remotely exploitable, no login, no user action
Related CVEs
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