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Vulnerability record · CVE-2026-92789 · published 16 September 2026

CVE-2026-92789: Server-side request forgery (SSRF) vulnerability

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.

7.1 CVSS 4.0 High EPSS 0.42% · top 66.7% CWE-918 · Server-side request forgery (SSRF) Deferred
7.1CVSS 4.0 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
22 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/Graylog2/graylog2-server
https://github.com/Graylog2/graylog2-server/blob/abb14d1/graylog2-server/src/main/java/org/graylog2/lookup/adapters/HTTP
https://github.com/Graylog2/graylog2-server/issues/26591
https://www.vulncheck.com/advisories/graylog-through-7.1.4-server-side-request-forgery-via-http-redirect

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-92789), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.