{"action":"Upgrade capnproto to 1.0.1-3 or later.","affected":[{"fixed":"1.0.1-3","introduced":"0"}],"component":"capnproto","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.0.1-3"],"id":"tcs_01M5NJCRKREWNRBG0EJC3FGSC6","modified_at":"2026-10-26T18:02:35.324343333Z","published_at":"2023-11-21T21:15:08.683Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-48230","https://security-tracker.debian.org/tracker/CVE-2023-48230"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-48230#Debian:14/capnproto","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-48230"}],"summary":"Cap'n Proto is a data interchange format and capability-based RPC system. In versions 1.0 and 1.0.1, when using the KJ HTTP library with WebSocket compression enabled, a buffer underrun can be caused"}