{"action":"Upgrade tor to 0.4.9.9-1 or later.","affected":[{"fixed":"0.4.9.9-1","introduced":"0"}],"component":"tor","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["0.4.9.9-1"],"id":"tcs_01M5NVEA10PSHJBW0DH16ETXQP","modified_at":"2026-10-23T17:47:32.065696199Z","published_at":"2026-08-20T21:17:11.373Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-77640","https://security-tracker.debian.org/tracker/CVE-2026-77640"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-77640","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-77640"}],"summary":"tor before 0.4.9.9 was prone to an infinite loop when decompressing a truncated zlib/gzip stream with done=1. A truncated stream never reaches Z_STREAM_END, causing zlib to return Z_BUF_ERROR with no"}