How severe is CVE-2026-50889?

CVE-2026-50889 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-50889 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-50889?

CVE-2026-50889 affects Lldap. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-50889?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-50889 have an EU (EUVD) identifier?

Yes. CVE-2026-50889 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36787.

When was CVE-2026-50889 published?

CVE-2026-50889 was published on 2026-06-15 and last updated on 2026-06-17.

CVE-2026-50889

CVE-2026-50889 is a high-severity vulnerability in Lldap with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36787
Weakness: CWE-400
Affected product: Lldap
Published: 2026-06-15
Last modified: 2026-06-17

Description

An input handling flaw in the HTTP refresh token process of LLDAP v0.6.2 allows attackers to cause a Denial of Service (DoS) via sending a crafted refresh-token header.

Frequently asked questions

What is CVE-2026-50889?: An input handling flaw in the HTTP refresh token process of LLDAP v0.6.2 allows attackers to cause a Denial of Service (DoS) via sending a crafted refresh-token header.
How severe is CVE-2026-50889?: CVE-2026-50889 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-50889 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-50889?: CVE-2026-50889 affects Lldap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-50889?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-50889 have an EU (EUVD) identifier?: Yes. CVE-2026-50889 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36787.
When was CVE-2026-50889 published?: CVE-2026-50889 was published on 2026-06-15 and last updated on 2026-06-17.

References

https://gist.github.com/pyuysig/41937c47514ff63d66a3be98ab8e8a7d

Affected products (1)

cpe:2.3:a:lldap:lldap:0.6.2:*:*:*:*:*:*:*

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