{"api_version":"1","generated_at":"2026-06-23T10:54:27+00:00","cve":"CVE-2026-55653","urls":{"html":"https://cve.report/CVE-2026-55653","api":"https://cve.report/api/cve/CVE-2026-55653.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-55653","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55653"},"summary":{"title":"Openssh: double free in red hat enterprise linux versions of openssh dh-gex client path during fips known-group validation leads to client-side denial of service","description":"A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie-Hellman Group Exchange (DH-GEX) client path. This occurs during FIPS (Federal Information Processing Standards) mode known-group validation when the client processes attacker-controlled DH-GEX group parameters. 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