How severe is CVE-2026-44379?

CVE-2026-44379 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-44379 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44379?

CVE-2026-44379 affects Misp-project Misp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-44379?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-44379 have an EU (EUVD) identifier?

Yes. CVE-2026-44379 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30166.

When was CVE-2026-44379 published?

CVE-2026-44379 was published on 2026-05-13 and last updated on 2026-06-22.

CVE-2026-44379

CVE-2026-44379 is a medium-severity vulnerability in Misp-project Misp with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 5.3
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30166
Weakness: CWE-20
Affected product: Misp-project Misp
Published: 2026-05-13
Last modified: 2026-06-22

Description

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.

Frequently asked questions

What is CVE-2026-44379?: 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.
How severe is CVE-2026-44379?: CVE-2026-44379 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-44379 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44379?: CVE-2026-44379 affects Misp-project Misp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-44379?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-44379 have an EU (EUVD) identifier?: Yes. CVE-2026-44379 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30166.
When was CVE-2026-44379 published?: CVE-2026-44379 was published on 2026-05-13 and last updated on 2026-06-22.

References

Affected products (1)

cpe:2.3:a:misp-project:misp:*:*:*:*:*:*:*:*

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