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Vulnerability · Published Aug 28, 2026 · Assigned by GitHub_M

CVE-2026-55425Graylog: System Catalog titles endpoint can be used to retrieve values of protected database fields

Medium 5.0

In plain English

A medium-severity security flaw in graylog2-server from Graylog2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.0Medium
Exploit odds (30 days)0.4%top 64.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenorg.graylog2:graylog2-server7.1.4GHSA-q79r-r9xg-r863

Affected products (as reported)

VendorProductVersions
Graylog2 graylog2-server >= 7.1.0, < 7.1.4>= 7.2.0-alpha.1, < 7.2.0-alpha.2

Weakness: CWE-213 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

References