{"id":"DEBIAN-CVE-2026-102474","details":"A flaw was found in dash. The printf builtin reserves four bytes before converting a Unicode \\u or \\U escape, but the multi-byte token can need five or six bytes. A local user who can supply such an escape to dash printf or echo %b, including through dash -c and a positional argument, can write one or two bytes past that reservation.","modified":"2026-09-30T09:00:10.075921026Z","published":"2026-09-29T10:17:10.707Z","upstream":["CVE-2026-102474"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-102474"}],"affected":[{"package":{"name":"dash","ecosystem":"Debian:12","purl":"pkg:deb/debian/dash?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.12+git20240518+f47009f9a76e-1","0.5.12+git20240518+f47009f9a76e-2","0.5.12-10","0.5.12-11","0.5.12-12","0.5.12-2","0.5.12-3","0.5.12-4","0.5.12-5","0.5.12-6","0.5.12-7","0.5.12-8","0.5.12-9","0.5.13.5-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102474.json"}},{"package":{"name":"dash","ecosystem":"Debian:13","purl":"pkg:deb/debian/dash?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.12+git20240518+f47009f9a76e-1","0.5.12+git20240518+f47009f9a76e-2","0.5.12-12","0.5.13.5-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102474.json"}},{"package":{"name":"dash","ecosystem":"Debian:14","purl":"pkg:deb/debian/dash?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.12+git20240518+f47009f9a76e-1","0.5.12+git20240518+f47009f9a76e-2","0.5.12-12","0.5.13.5-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102474.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}