{"action":"Upgrade linux to 6.12.86-1 or later.","affected":[{"fixed":"6.12.86-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.86-1"],"id":"tcs_01M5NS5XT184048W30SZTFTKCW","modified_at":"2026-10-23T18:04:44.912960714Z","published_at":"2026-05-21T13:16:19.410Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-43501","https://security-tracker.debian.org/tracker/CVE-2026-43501"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-43501#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-43501"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve mac_len headroom when recompressed SRH grows ipv6_rpl_srh_rcv() decompresses an RFC 6554 Source Routing Header, s"}