What is CVE-2026-50889?

CVE-2026-50889 is a high-severity vulnerability in Lldap, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-06-15.

How severe is CVE-2026-50889?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Lldap

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.

Vulnerability class: DoS (Denial of Service)

Published 2026-06-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (39.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Lldap — versions 0.6.2

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

gist.github.com/pyuysig/41937c47514ff63d66a3be98ab8e8a7d (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-50889?: CVE-2026-50889 is a high-severity vulnerability in Lldap, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-06-15.
How severe is CVE-2026-50889?: High severity. CVSS v3 base score is 7.5 out of 10.