CVE-2026-92789
Graylog through 7.1.4 Server-Side Request Forgery via HTTP Redirect
- State
- Published
- Severity
- 7.1 High
- Published
- Sep 16, 2026
- Updated
- Sep 17, 2026
- Reserved
- Sep 16, 2026
Description
Graylog through 7.1.4 validates outbound URLs against an allowlist before making requests but fails to re-validate after following HTTP redirects. Attackers with lookup table or event notification permissions can craft allowlisted endpoints that redirect to internal services, enabling the server to fetch and return internal responses.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
graylog2-serverGraylog2 |
|
References
- GitHub Issue #26591issue-tracking
- https://github.com/Graylog2/graylog2-serverproduct
- the allowlist is checked only against the pre-redirect URLtechnical-description
- VulnCheck Advisory: Graylog through 7.1.4 Server-Side Request Forgery via HTTP Redirectthird-party-advisory
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