{"id":"UBUNTU-CVE-2026-104269","details":"[GHSA-5pww-8rfg-9crf: RFC 2231 filename* parameter bypasses multipart filename rules]","modified":"2026-10-06T10:48:20.879371166Z","published":"2026-10-06T00:00:00Z","upstream":["CVE-2026-104269"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-104269"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-104269"},{"type":"REPORT","url":"https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-5pww-8rfg-9crf"},{"type":"REPORT","url":"https://modsecurity.org/20260928/security-update-digest-overview-of-recent-advisory-fixes-2026-september/"}],"affected":[{"package":{"name":"modsecurity-apache","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.4-1","2.7.5-1","2.7.7-1","2.7.7-1ubuntu1","2.7.7-2","2.7.7-2ubuntu0.1~esm1","2.7.7-2ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.7.7-2ubuntu0.1~esm2","binary_name":"libapache2-mod-security2"},{"binary_name":"libapache2-modsecurity","binary_version":"2.7.7-2ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104269.json"}},{"package":{"name":"modsecurity-apache","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.0-1","2.9.0-1ubuntu0.1~esm1","2.9.0-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-security2","binary_version":"2.9.0-1ubuntu0.1~esm2"},{"binary_name":"libapache2-modsecurity","binary_version":"2.9.0-1ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104269.json"}},{"package":{"name":"modsecurity-apache","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.1-3","2.9.2-1","2.9.2-1ubuntu0.1~esm1","2.9.2-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-security2","binary_version":"2.9.2-1ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104269.json"}},{"package":{"name":"modsecurity","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/modsecurity?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.3-1","3.0.4-1","3.0.4-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmodsecurity3","binary_version":"3.0.4-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104269.json"}},{"package":{"name":"modsecurity-apache","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.3-1","2.9.3-1ubuntu0.1","2.9.3-1ubuntu0.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-security2","binary_version":"2.9.3-1ubuntu0.1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104269.json"}},{"package":{"name":"modsecurity","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/modsecurity?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.4-2","3.0.6-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmodsecurity3","binary_version":"3.0.6-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104269.json"}},{"package":{"name":"modsecurity-apache","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.3-3","2.9.5-1","2.9.5-1ubuntu0.1~esm1","2.9.5-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.9.5-1ubuntu0.1~esm2","binary_name":"libapache2-mod-security2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104269.json"}},{"package":{"name":"modsecurity","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/modsecurity?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.10-1","3.0.11-1","3.0.12-1","3.0.12-1.1build1","3.0.12-1.1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmodsecurity3t64","binary_version":"3.0.12-1.1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104269.json"}},{"package":{"name":"modsecurity-apache","ec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