{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"mbedtls","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":[],"id":"tcs_01M5NP73C5WJDT60VJ6TWHT570","modified_at":"2026-09-01T20:05:56.197879175Z","published_at":"2026-04-01T20:16:22.107Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-66442","https://security-tracker.debian.org/tracker/CVE-2025-66442"],"severity":{"label":"medium","score":5.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-66442#Debian:13/mbedtls","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-66442"}],"summary":"In Mbed TLS through 4.0.0, there is a compiler-induced timing side channel (in RSA and CBC/ECB decryption) that only occurs with LLVM's select-optimize feature. TF-PSA-Crypto through 1.0.0 is also aff"}