{"id":"CVE-2026-103242","aliases":["AZL-105810","DEBIAN-CVE-2026-103242","EUVD-2026-89790","GHSA-446c-w894-m822","OESA-2026-4708","OESA-2026-4709","OESA-2026-4710","OESA-2026-4802","UBUNTU-CVE-2026-103242"],"status":"published","title":"Rpm: heap-based buffer overflow write in hex2binv() via a mistyped rpmtag_filesignatures header tag","description":"A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00119,"percentile":0.01808,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122"],"published":"2026-09-30T11:50:32Z","modified":"2026-11-11T12:45:06Z","fixes":[{"ecosystem":"openEuler:22.03-LTS-SP4","package":"rpm","fixed_in":["4.17.0-54.oe2203sp4"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP1","package":"rpm","fixed_in":["4.18.2-43.oe2403sp1"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP3","package":"rpm","fixed_in":["4.18.2-43.oe2403sp3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.18.2-2"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.18.0+dfsg-1","4.18.0+dfsg-1+deb12u1","4.18.2+dfsg-1","4.18.2+dfsg-1.1~exp1","4.18.2+dfsg-2","4.18.2+dfsg-2.1","4.18.2+dfsg-2.1~exp1","4.19.1.1+dfsg-1","4.19.1.1+dfsg-1~exp","4.20.0+dfsg-1","4.20.0+dfsg-2","4.20.0+dfsg-3","4.20.0+dfsg-4","4.20.1+dfsg-1","4.20.1+dfsg-2","4.20.1+dfsg-3","6.0.0-1","6.0.0-2","6.0.1-1","6.1.0-1"]},{"source":"osv","ecosystem":"Debian:13","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.20.1+dfsg-3","6.0.0-1","6.0.0-2","6.0.1-1","6.1.0-1"]},{"source":"osv","ecosystem":"Debian:14","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.20.1+dfsg-3","6.0.0-1","6.0.0-2","6.0.1-1","6.1.0-1"]},{"source":"osv","ecosystem":"openEuler:22.03-LTS-SP4","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.0-54.oe2203sp4"}]}]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP1","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.2-43.oe2403sp1"}]}]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP3","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.2-43.oe2403sp3"}]}]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP4","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.2-44.oe2403sp4"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.11.1-2","4.11.1-3","4.11.1-3ubuntu0.1","4.11.1-3ubuntu0.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.0.1+dfsg1-3build2","4.12.0.1+dfsg1-3build3","4.12.0.1+dfsg1-3ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.0.2+dfsg1-2build2","4.14.0+dfsg1-2","4.14.1+dfsg1-2","4.14.1+dfsg1-2ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.14.2.1+dfsg1-1","4.14.2.1+dfsg1-1build1","4.14.2.1+dfsg1-1build2","4.14.2.1+dfsg1-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.16.1.2+dfsg1-3ubuntu1","4.16.1.2+dfsg1-3ubuntu3","4.17.0+dfsg1-1","4.17.0+dfsg1-3","4.17.0+dfsg1-4","4.17.0+dfsg1-4build1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.18.0+dfsg-1build1","4.18.0+dfsg-1build2","4.18.2+dfsg-1","4.18.2+dfsg-2","4.18.2+dfsg-2.1build1","4.18.2+dfsg-2.1build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.1-1build1","6.1.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.20.1+dfsg-3","6.0.0-2","6.0.1-1","6.0.1-1build1"]}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"},{"vendor":"red hat","product":"red hat hardened images"},{"vendor":"red hat","product":"red hat openshift ai (rhoai)"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-103242","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543866","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103242","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-446c-w894-m822"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-103242","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4708","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4709","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4710","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4802","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-95519","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-103242","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-103242","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-103242","title":"Rpm: heap-based buffer overflow write in hex2binv() via a mistyped rpmtag_filesignatures header tag","description":"A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.","status":"published","published":"2026-09-30T11:50:32.039Z","modified":"2026-11-06T07:39:50.256Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-06T08:57:32.08691Z"}],"euvd":[{"id":"EUVD-2026-89790","description":"A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.","status":"published","published":"2026-09-30T11:50:32Z","modified":"2026-11-06T07:39:50Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-06T09:04:28.113071Z"}],"ghsa":[{"id":"GHSA-446c-w894-m822","title":"A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned...","description":"A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.","status":"published","published":"2026-09-30T12:35:17Z","modified":"2026-09-30T12:35:22Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:12:35.884172Z"}],"nvd":[{"id":"CVE-2026-103242","description":"A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.","status":"published","published":"2026-09-30T12:17:12.653Z","modified":"2026-11-06T08:17:17.297Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-06T11:59:57.419913Z"}],"osv":[{"id":"DEBIAN-CVE-2026-103242","description":"A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.","status":"published","published":"2026-09-30T12:17:12.653Z","modified":"2026-11-07T09:47:33.098045344Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-07T10:14:39.995311Z"},{"id":"OESA-2026-4708","title":"rpm security update","description":"The RPM Package Manager (RPM) is a powerful package management system capability as below\r\n\r\nSecurity Fix(es):\n\nA heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package\u0026apos;s main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag\u0026apos;s attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.(CVE-2026-103242)","status":"published","published":"2026-11-04T13:54:44Z","modified":"2026-11-04T14:00:05.935488464Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-04T14:10:46.921518Z"},{"id":"OESA-2026-4709","title":"rpm security update","description":"The RPM Package Manager (RPM) is a powerful package management system capability as below\r\n\r\nSecurity Fix(es):\n\nA heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package\u0026apos;s main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag\u0026apos;s attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.(CVE-2026-103242)","status":"published","published":"2026-11-04T13:54:45Z","modified":"2026-11-04T14:00:05.933060698Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-04T14:10:46.921518Z"},{"id":"OESA-2026-4710","title":"rpm security update","description":"The RPM Package Manager (RPM) is a powerful package management system capability as below\r\n\r\nSecurity Fix(es):\n\nA heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package\u0026apos;s main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag\u0026apos;s attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.(CVE-2026-103242)","status":"published","published":"2026-11-04T13:54:46Z","modified":"2026-11-04T14:00:06.225797143Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-04T14:10:46.921518Z"},{"id":"OESA-2026-4802","title":"rpm security update","description":"The RPM Package Manager (RPM) is a powerful package management system capability as below\r\n\r\nSecurity Fix(es):\n\nA heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package\u0026apos;s main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag\u0026apos;s attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.(CVE-2026-103242)\n\nA flaw was found in rpm. An attacker can supply a crafted manifest file that, when processed by a user or automation using `rpm -q -p` or similar manifest-processing flows, leads to arbitrary code execution. This occurs because manifest entries are unexpectedly macro-expanded before being opened, allowing embedded shell commands to run with the privileges of the `rpm` process. Successful exploitation can lead to a full compromise of confidentiality, integrity, and availability for the affected account.(CVE-2026-95519)","status":"published","published":"2026-11-11T12:26:18Z","modified":"2026-11-11T12:45:06.799862329Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-11T13:08:46.301371Z"},{"id":"UBUNTU-CVE-2026-103242","description":"A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.","status":"published","published":"2026-09-30T12:17:00Z","modified":"2026-10-17T12:57:58.839355631Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:55:58.519486Z"},{"id":"AZL-105810","title":"CVE-2026-103242 affecting package rpm 4.18.2-2","description":"A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.","status":"published","published":"2026-09-30T12:17:12Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:17.719431Z"}]}}