How severe is CVE-2026-44305?

CVE-2026-44305 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-44305 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.

How do I fix CVE-2026-44305?

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

Does CVE-2026-44305 have an EU (EUVD) identifier?

Yes. CVE-2026-44305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29865.

When was CVE-2026-44305 published?

CVE-2026-44305 was published on 2026-05-12 and last updated on 2026-06-17.

CVE-2026-44305

CVE-2026-44305 is a medium-severity vulnerability with a CVSS 3.x base score of 6.8. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29865
Weakness: CWE-295
Published: 2026-05-12
Last modified: 2026-06-17

Description

Lemur manages TLS certificate creation. Prior to 1.9.0, when LDAP TLS is enabled (LDAP_USE_TLS = True), Lemur's LDAP authentication module unconditionally disables TLS certificate verification at the global ldap module level. This allows a man-in-the-middle attacker positioned between Lemur and the LDAP server to intercept all authentication credentials. This vulnerability is fixed in 1.9.0.

Frequently asked questions

What is CVE-2026-44305?: Lemur manages TLS certificate creation. Prior to 1.9.0, when LDAP TLS is enabled (LDAP_USE_TLS = True), Lemur's LDAP authentication module unconditionally disables TLS certificate verification at the global ldap module level. This allows a man-in-the-middle attacker positioned between Lemur and the LDAP server to intercept all authentication credentials. This vulnerability is fixed in 1.9.0.
How severe is CVE-2026-44305?: CVE-2026-44305 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-44305 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.
How do I fix CVE-2026-44305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-44305 have an EU (EUVD) identifier?: Yes. CVE-2026-44305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29865.
When was CVE-2026-44305 published?: CVE-2026-44305 was published on 2026-05-12 and last updated on 2026-06-17.

References

https://github.com/Netflix/lemur/security/advisories/GHSA-vr7c-r5gj-j3w5

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