🛡️ CVE-2025-30373 — graylog

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-285 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Graylog's Authenticated HTTP inputs ingest message even if Authorization header is missing or has wrong value

Impact

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 cases of a missing header or a wrong value the correct HTTP response (401) is returned, the message will be ingested nonetheless.

Patches

Workarounds

Disabling http-based inputs and allow only authenticated pull-based inputs.

Analysis provided by Fabian Yamaguchi - Whirly Labs (Pty) Ltd

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability low.

Weakness class

CVE-2025-30373 is classified as CWE-285: Improper Authorization. A request is carried out without confirming that the caller is permitted to perform it on that specific resource.

Affected software

CVE-2025-30373 is recorded against 2 packages.

  • graylog (from 6.1.0 up to 6.1.9)
  • org.graylog2:graylog2-server (from 6.1.0 up to 6.1.9)

Timeline and source

Published on 7 April 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CWE CWE-285
Public Exploit ✅ No
Source NVD
Published 2025-04-07
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
graylog 6.1.0 6.1.9
org.graylog2:graylog2-server 6.1.0 6.1.9

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