{"action":"Upgrade mbedtls to 3.6.6-0.1 or later.","affected":[{"fixed":"3.6.6-0.1","introduced":"0"}],"component":"mbedtls","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.6.6-0.1"],"id":"tcs_01M5NRSWS8NM65NXYEFADTBT47","modified_at":"2026-10-01T03:03:10.747350026Z","published_at":"2026-04-01T19:16:33.390Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-34874","https://security-tracker.debian.org/tracker/CVE-2026-34874"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-34874#Debian:14/mbedtls","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-34874"}],"summary":"An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0."}