What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-28 · updated 2026-09-09
• Weakness: CWE-213

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 products

• graylog2-server: from 7.1.0, < 7.1.4; from 7.2.0-alpha.1, < 7.2.0-alpha.2

References

• https://github.com/Graylog2/graylog2-server/commit/1d1a91d99c3d2d8993e61c3c52344648163d3a21
• https://github.com/Graylog2/graylog2-server/commit/da7767a44233b6a683d0713eed08da31ce0e77b5
• https://github.com/Graylog2/graylog2-server/pull/26284
• https://github.com/Graylog2/graylog2-server/releases/tag/7.1.4
• https://github.com/Graylog2/graylog2-server/releases/tag/7.2.0-alpha.2
• https://github.com/Graylog2/graylog2-server/security/advisories/GHSA-q79r-r9xg-r863

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