Medium severity · published Apr 7, 2025
CVE-2025-30373
Graylog Authenticated HTTP inputs do ingest message even if Authorization header is missing or has wrong value
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
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 cases of a missing header or a wrong value the correct HTTP response (401) is returned, the message will be ingested nonetheless. To mitigate the vulnerability, disable http-based inputs and allow only authenticated pull-based inputs. This vulnerability is fixed in 6.1.9.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
graylog2-server · Graylog2
>= 6.1.0, < 6.1.9 · source: vendor
GR
Graylog · Graylog
6.1.0 before 6.1.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-30373
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-30373
Patch
https://github.com/Graylog2/graylog2-server/commit/31bc13d3cd6f550ec83473d0f8666cd3ebf50f10
Third Party Advisory
https://github.com/Graylog2/graylog2-server/security/advisories/GHSA-q7g5-jq6p-6wvx
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