What is CVE-2025-30373?

CVE-2025-30373 is a medium-severity vulnerability in Graylog, classified under Improper Authorization. CVSS score: 6.5/10. Published 2025-04-07.

How severe is CVE-2025-30373?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Graylog

CVE-2025-30373

Graylog is a free and open log management platform. Starting with 6.1, HTTP Inputs can be configured to check if a specified header is present and has a specified value to authenticate HTTP-based ingestion. Unfortunately, even though in ca…

EPSS: 0.003 (20.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Graylog
Graylog2 Graylog2-server — versions >= 6.1.0, < 6.1.9

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-30373?: CVE-2025-30373 is a medium-severity vulnerability in Graylog, classified under Improper Authorization. CVSS score: 6.5/10. Published 2025-04-07.
How severe is CVE-2025-30373?: Medium severity. CVSS v3 base score is 6.5 out of 10.