Graylog: System Catalog titles endpoint can be used to retrieve values of protected database fields
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Graylog2 | graylog2-server | 7.1.0 to before 7.1.4; 7.2.0-alpha.1 to before 7.2.0-alpha.2 | 7.1.4, 7.2.0-alpha.2 | Patch available | CNA |
| — | org.graylog2:graylog2-server (Maven) | 7.1.0 to before 7.1.4 | 7.1.4 | Patch available | GHSA-q79r-r9xg-r863 |
- graylog2-server VendorGraylog2 Affected 7.1.0 to before 7.1.4; 7.2.0-alpha.1 to before 7.2.0-alpha.2 Fixed in 7.1.4, 7.2.0-alpha.2 Patch available CNA
- org.graylog2:graylog2-server (Maven) Vendor— Affected 7.1.0 to before 7.1.4 Fixed in 7.1.4 Patch available GHSA-q79r-r9xg-r863
Remediation
- Fix · CNA graylog2-server (Graylog2) Fixed in 7.1.4, 7.2.0-alpha.2
- Fix · GHSA-q79r-r9xg-r863 org.graylog2:graylog2-server (Maven) Fixed in 7.1.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-55425
- 2026-10-03 Alias added: GHSA-q79r-r9xg-r863
References
Other 7
- https://github.com/Graylog2/graylog2-server/security/advisories/GHSA-q79r-r9xg-r863
- https://github.com/Graylog2/graylog2-server/pull/26284
- https://github.com/Graylog2/graylog2-server/commit/1d1a91d99c3d2d8993e61c3c52344648163d3a21
- https://github.com/Graylog2/graylog2-server/commit/da7767a44233b6a683d0713eed08da31ce0e77b5
- 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
More Graylog2 vulnerabilities
- TI-2024-16341 graylog2-server vulnerable to instantiation of arbitrary classes triggered by API request CVSS 3.1HIGH 8.8
- TI-2023-21671 Insecure source port usage for DNS queries in Graylog CVSS 3.1MEDIUM 5.3
- TI-2026-01133 Incorrect management of session invalidation vulnerability in Graylog Web Interface CVSS 4.0CRITICAL 9.3
- TI-2023-21667 User session is still usable after logout in graylog2-server CVSS 3.1LOW 3.1
- TI-2021-15624 A Session ID leak in the audit log in Graylog before 4.1.2 allows attackers to escalate… CVSS 3.1CRITICAL 9.8
- TI-2021-15623 A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-55425 · CVE Program
- CVE-2026-55425 · NVD
- FIRST EPSS
- GHSA-q79r-r9xg-r863 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences