{"id":"UBUNTU-CVE-2026-110656","details":"miniupnpc through 2.3.3 contains a one-byte heap out-of-bounds read vulnerability in the minixml parseelt function's namespace-prefix handling that skips an end-of-buffer check after advancing past ':'. A malicious or spoofed UPnP gateway on the local network can send a device description or SOAP reply ending in ':' within an element name to crash the client.","modified":"2026-10-17T12:58:03.645165965Z","published":"2026-10-15T00:00:00Z","upstream":["CVE-2026-110656"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-110656"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-110656"},{"type":"REPORT","url":"https://github.com/miniupnp/miniupnp"},{"type":"REPORT","url":"https://github.com/miniupnp/miniupnp/blob/bf4215a7574f88aa55859db9db00e3ae58cf42d6/miniupnpc/src/minixml.c#L141"},{"type":"REPORT","url":"https://github.com/miniupnp/miniupnp/commit/64ef08a12aabab57be0bf7e40f047c8f14dedf9c"},{"type":"REPORT","url":"https://hackmd.io/@haind-pwn/miniupnpc-minixml-oob-read"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/miniupnpc-through-2.3.3-heap-out-of-bounds-read-via-minixml-parseelt"}],"affected":[{"package":{"name":"miniupnpc","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/miniupnpc?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.20140610-2ubuntu1","1.9.20140610-2ubuntu2","1.9.20140610-2ubuntu2.16.04.1","1.9.20140610-2ubuntu2.16.04.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libminiupnpc10","binary_version":"1.9.20140610-2ubuntu2.16.04.2"},{"binary_name":"miniupnpc","binary_version":"1.9.20140610-2ubuntu2.16.04.2"},{"binary_name":"python-miniupnpc","binary_version":"1.9.20140610-2ubuntu2.16.04.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110656.json"}},{"package":{"name":"miniupnpc","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/miniupnpc?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.20140610-4ubuntu1","1.9.20140610-4ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.9.20140610-4ubuntu2","binary_name":"libminiupnpc10"},{"binary_version":"1.9.20140610-4ubuntu2","binary_name":"miniupnpc"},{"binary_name":"python-miniupnpc","binary_version":"1.9.20140610-4ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110656.json"}},{"package":{"name":"miniupnpc","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/miniupnpc?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.20190824-0ubuntu1","2.1.20190824-0ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.1.20190824-0ubuntu2","binary_name":"libminiupnpc17"},{"binary_name":"miniupnpc","binary_version":"2.1.20190824-0ubuntu2"},{"binary_name":"python3-miniupnpc","binary_version":"2.1.20190824-0ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110656.json"}},{"package":{"name":"miniupnpc","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/miniupnpc?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.1-1","2.2.1-1build1","2.2.3-1","2.2.3-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libminiupnpc17","binary_version":"2.2.3-1build1"},{"binary_name":"miniupnpc","binary_version":"2.2.3-1build1"},{"binary_name":"python3-miniupnpc","binary_version":"2.2.3-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110656.json"}},{"package":{"name":"miniupnpc","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/miniupnpc?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.5-1","2.2.6-1","2.2.6-1build1","2.2.6-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.2.6-1build2","binary_name":"libminiupnpc17"},{"binary_version":"2.2.6-1build2","binary_name":"miniupnpc"},{"binary_name":"python3-miniupnpc","binary_version":"2.2.6-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110656.json"}},{"package":{"name":"miniupnpc","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/miniupnpc?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.3-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libminiupnpc21","binary_version":"2.3.3-2build1"},{"binary_name":"miniupnpc","binary_version":"2.3.3-2build1"},{"binary_name":"python3-miniupnpc","binary_version":"2.3.3-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110656.json"}},{"package":{"name":"miniupnpc","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/miniupnpc?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.8-2build2","2.3.3-2","2.3.3-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libminiupnpc21","binary_version":"2.3.3-2build1"},{"binary_version":"2.3.3-2build1","binary_name":"miniupnpc"},{"binary_version":"2.3.3-2build1","binary_name":"python3-miniupnpc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110656.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}