23 Oct 2026 15:48:27 UTC
Keep Unauthenticated Server-Side Request Forgery via POST /providers/healthcheck
cve-program · CVE-2026-65057 · Published
CVE-2026-65057
Keep Unauthenticated Server-Side Request Forgery via POST /providers/healthcheck
CVSS 4.0 9.2 CRITICALCVSS 3.1 9.3 CRITICALCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-65057
PublishedKeep (commit 91c75e0) contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the backend issue arbitrary HTTP requests by supplying attacker-controlled host values to the unprotected healthcheck endpoint. Attackers can send a crafted JSON payload with a malicious host parameter to cause the backend to issue outbound requests to internal services or cloud metadata endpoints, enabling theft of cloud credentials and internal network reconnaissance.
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