{"id":"DEBIAN-CVE-2026-40890","details":"The package `github.com/gomarkdown/markdown` is a Go library for parsing Markdown text and rendering as HTML. Processing a malformed input containing a \u003c character that is not followed by a \u003e character anywhere in the remaining text with a SmartypantsRenderer will lead to Out of Bounds read or a panic. This vulnerability is fixed with commit 759bbc3e32073c3bc4e25969c132fc520eda2778.","modified":"2026-08-27T23:05:59.557791430Z","published":"2026-04-21T20:17:02.810Z","upstream":["CVE-2026-40890"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-40890"}],"affected":[{"package":{"name":"golang-github-gomarkdown-markdown","ecosystem":"Debian:12","purl":"pkg:deb/debian/golang-github-gomarkdown-markdown?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20220731.dcdaee8-2","0.0~git20231115.a660076-1","0.0~git20260725.8435af3-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40890.json"}},{"package":{"name":"golang-github-gomarkdown-markdown","ecosystem":"Debian:13","purl":"pkg:deb/debian/golang-github-gomarkdown-markdown?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20231115.a660076-1","0.0~git20260725.8435af3-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40890.json"}},{"package":{"name":"golang-github-gomarkdown-markdown","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-github-gomarkdown-markdown?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0~git20260725.8435af3-1"}]}],"versions":["0.0~git20231115.a660076-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40890.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}