How severe is CVE-2026-13067?

CVE-2026-13067 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-13067 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-13067?

CVE-2026-13067 affects Mongodb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-13067?

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

When was CVE-2026-13067 published?

CVE-2026-13067 was published on 2026-07-22 and last updated on 2026-08-05.

CVE-2026-13067

CVE-2026-13067 is a medium-severity vulnerability in Mongodb with a CVSS 3.x base score of 6.3. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v4: 7.2
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Mongodb
Published: 2026-07-22
Last modified: 2026-08-05

Description

When PROXY protocol v2 is used on the Unix domain socket path, roles derived from X.509 client certificates may not be validated against the configured tlsCATrusts allow-list. This can result in unintended role assignments following MONGODB-X509 authentication. Affected scenarios require local access to the proxy Unix domain socket and a valid X.509 certificate issued by a trusted certificate authority.

Frequently asked questions

What is CVE-2026-13067?: When PROXY protocol v2 is used on the Unix domain socket path, roles derived from X.509 client certificates may not be validated against the configured tlsCATrusts allow-list. This can result in unintended role assignments following MONGODB-X509 authentication. Affected scenarios require local access to the proxy Unix domain socket and a valid X.509 certificate issued by a trusted certificate authority.
How severe is CVE-2026-13067?: CVE-2026-13067 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-13067 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-13067?: CVE-2026-13067 affects Mongodb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-13067?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-13067 published?: CVE-2026-13067 was published on 2026-07-22 and last updated on 2026-08-05.

References

https://jira.mongodb.org/browse/SERVER-128387

Affected products (1)

cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

67.215.227.54 (ipv4-addr)
43.155.238.153 (ipv4-addr)
146.59.232.118 (ipv4-addr)
185.208.206.215 (ipv4-addr)