{"action":"Upgrade libreswan to 5.2-2.5 or later.","affected":[{"fixed":"5.2-2.5","introduced":"0"}],"component":"libreswan","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["5.2-2.5"],"id":"tcs_01M5NSQ46NNM5HDKA4FXHA446Z","modified_at":"2026-10-26T11:47:30.082393022Z","published_at":"2026-07-02T22:16:43.367Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-50721","https://security-tracker.debian.org/tracker/CVE-2026-50721"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-50721#Debian:14/libreswan","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-50721"}],"summary":"Libreswan, via the function RSA_authenticate_hash_signature_raw_rsa(), did not correctly verify the length of the authentication hash when the SIG payload of an IKEv1 packet was encoded using PKCS #1"}