{"action":"Upgrade libssh2 to 1.11.1-1+deb13u1 or later.","affected":[{"fixed":"1.11.1-1+deb13u1","introduced":"0"}],"component":"libssh2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.11.1-1+deb13u1"],"id":"tcs_01M5NMZBZPWM6B6N4VVB6MP7EX","modified_at":"2026-10-13T09:47:38.408513534Z","published_at":"2026-06-18T21:16:27.143Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-15661","https://security-tracker.debian.org/tracker/CVE-2025-15661"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-15661#Debian:13/libssh2","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-15661"}],"summary":"libssh2 through 1.11.1, fixed in commit 2dae302, contains an out-of-bounds heap read vulnerability in the sftp_symlink() function in src/sftp.c that allows a malicious SSH server or man-in-the-middle"}