{"action":"Upgrade golang-1.15 to 1.15.9-6 or later.","affected":[{"fixed":"1.15.9-6","introduced":"0"}],"component":"golang-1.15","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:11","exploited":false,"fixed_versions":["1.15.9-6"],"id":"tcs_01M5NFRM5C8BDR3EXA8P9297AZ","modified_at":"2026-08-27T23:04:04.162738140Z","published_at":"2021-07-15T14:15:19.660Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-34558","https://security-tracker.debian.org/tracker/CVE-2021-34558"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-34558","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-34558"}],"summary":"The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malic"}