{"action":"Upgrade curl to 8.22.0~rc2-1 or later.","affected":[{"fixed":"8.22.0~rc2-1","introduced":"0"}],"component":"curl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["8.22.0~rc2-1"],"id":"tcs_01M5NQY20M2S3N5Q83ZHAR4JHK","modified_at":"2026-10-01T03:03:19.732575577Z","published_at":"2026-09-06T18:17:20.733Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-19931","https://security-tracker.debian.org/tracker/CVE-2026-19931"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-19931#Debian:14/curl","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-19931"}],"summary":"A flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given hostname using Negotiate authentication, when the initial request is done using empty credentials. This can make user B's"}