{"id":"UBUNTU-CVE-2026-36189","details":"Buffer Overflow vulnerability in Uncrustify Project Affected v.Uncrustify_d-0.82.0-132-bcc41cbdc and Fixed in commit 68e67b9a1435a1bb173b106fedb4a4f510972bdc allows a local attacker to cause a denial of service via the check_template.cpp, check_template function, tokenize_cleanup function, uncrustify executable components","modified":"2026-05-22T20:30:07.815270755Z","published":"2026-05-22T00:00:00Z","upstream":["CVE-2026-36189"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-36189"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-36189"}],"affected":[{"package":{"name":"uncrustify","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/uncrustify?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.59+dfsg1-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"uncrustify","binary_version":"0.59+dfsg1-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-36189.json"}},{"package":{"name":"uncrustify","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/uncrustify?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.65+git20170831+dfsg1-1","0.66.1+dfsg1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"uncrustify","binary_version":"0.66.1+dfsg1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-36189.json"}},{"package":{"name":"uncrustify","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/uncrustify?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.69.0+dfsg1-1","0.69.0+dfsg1-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"uncrustify","binary_version":"0.69.0+dfsg1-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-36189.json"}},{"package":{"name":"uncrustify","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/uncrustify?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.72.0+dfsg1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"uncrustify","binary_version":"0.72.0+dfsg1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-36189.json"}},{"package":{"name":"uncrustify","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/uncrustify?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.72.0+dfsg1-2","0.78.1+dfsg1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"uncrustify","binary_version":"0.78.1+dfsg1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-36189.json"}},{"package":{"name":"uncrustify","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/uncrustify?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.78.1+dfsg1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"uncrustify","binary_version":"0.78.1+dfsg1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-36189.json"}},{"package":{"name":"uncrustify","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/uncrustify?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.78.1+dfsg1-1","0.78.1+dfsg1-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"uncrustify","binary_version":"0.78.1+dfsg1-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-36189.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}