Vulnerability in Graylog2 Graylog2-Server
CVE-2026-55425
Graylog is a free and open log management platform. From 7.1.0 until 7.1.4 and 7.2.0-alpha.2, the System Catalog entity titles endpoint in graylog2-server/src/main/java/org/graylog2/rest/resources/system/contentpacks/titles/EntityTitleServiceImpl.java allows an authenticated user to request composite display fields without verifying that every selected field is readable. A user can retrieve protected values, including the password hash on a readable user record; ordinary users are limited to their own permitted records, while administrators can retrieve hashes for all users. This issue is fixed in versions 7.1.4 and 7.2.0-alpha.2.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.
Affected products
- Graylog2 Graylog2-server — versions >= 7.1.0, < 7.1.4, >= 7.2.0-alpha.1, < 7.2.0-alpha.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55425?
- CVE-2026-55425 is a medium-severity vulnerability in Graylog2 Graylog2-Server, classified under CWE-213. CVSS score: 5.0/10. Published 2026-08-28.
- How severe is CVE-2026-55425?
- Medium severity. CVSS v3 base score is 5.0 out of 10.