{"action":"Upgrade libonig to 6.9.4-1 or later.","affected":[{"fixed":"6.9.4-1","introduced":"0"}],"component":"libonig","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.9.4-1"],"id":"tcs_01M5NE2FFY4FM9DSJB54QM2AVS","modified_at":"2026-09-21T07:01:54.481266549Z","published_at":"2019-11-21T21:15:11.497Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-19203","https://security-tracker.debian.org/tracker/CVE-2019-19203"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-19203","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-19203"}],"summary":"An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function gb18030_mbc_enc_len in file gb18030.c, a UChar pointer is dereferenced without checking if it passed the end of the matched s"}