CVE-2026-92789: high-severity vulnerability in graylog2-server
Graylog through 7.1.4 Server-Side Request Forgery via HTTP Redirect
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.4%
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
Affected products
Graylog2 · graylog2-serverRelated CVEs — graylog2-server
In the same product, most dangerous first.
CVE-2024-24824HIGHgraylog2-server vulnerable to instantiation of arbitrary classes triggered by API requestEPSS 34.7%CVE-2023-41044LOWPartial path traversal vulnerability in Support Bundle feature of GraylogEPSS 0.7%CVE-2026-55841HIGHGraylog: Fortigate syslog message parser can be exploited to modify or delete fields from the original messageEPSS 0.6%CVE-2024-52506HIGHGraylog can leak other users' reports via concurrent PDF report renderingEPSS 0.6%CVE-2025-53106HIGHGraylog vulnerable to privilege escalation through API tokensEPSS 0.6%CVE-2026-55867MEDIUMGraylog token revocation endpoint allows authenticated users to delete other users’ access tokensEPSS 0.6%
References
https://github.com/Graylog2/graylog2-serverhttps://github.com/Graylog2/graylog2-server/blob/abb14d1/graylog2-server/src/main/java/org/graylog2/lookup/adapters/HTTPJSONPathDataAdapter.java#L158-L195https://github.com/Graylog2/graylog2-server/issues/26591https://www.vulncheck.com/advisories/graylog-through-7.1.4-server-side-request-forgery-via-http-redirect