Vulnerability · Published Sep 16, 2026 · Assigned by VulnCheck
CVE-2026-92789Graylog through 7.1.4 Server-Side Request Forgery via HTTP Redirect
Medium 6.5
In plain English
A medium-severity server-side request forgery 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).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 64.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Graylog2 | graylog2-server | 0 – through 7.1.4 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- GitHub Issue #26591 issue-tracking
- https://github.com/Graylog2/graylog2-server product
- the allowlist is checked only against the pre-redirect URL technical-description
- VulnCheck Advisory: Graylog through 7.1.4 Server-Side Request Forgery via HTTP Redirect third-party-advisory