{"id":"CVE-2026-78367","aliases":["CLSA-2026-1792688613","CLSA-2026-1792689108","DEBIAN-CVE-2026-78367","EUVD-2026-64885","GHSA-pghw-ch4m-h3f9","OESA-2026-3860","OESA-2026-3861","OESA-2026-3862","OESA-2026-3863","OESA-2026-3928","RHSA-2026:82378","UBUNTU-CVE-2026-78367"],"status":"published","title":"Rpm: rpmbuild gettarspec() crafted tar member name → macro injection","description":"A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00199,"percentile":0.09714,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-74","CWE-94"],"published":"2026-08-24T13:48:52Z","modified":"2026-11-06T07:44:59Z","fixes":[{"ecosystem":"openEuler:20.03-LTS-SP4","package":"rpm","fixed_in":["4.15.1-66.oe2003sp4"],"sources":["osv"]},{"ecosystem":"openEuler:22.03-LTS-SP4","package":"rpm","fixed_in":["4.17.0-53.oe2203sp4"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP1","package":"rpm","fixed_in":["4.18.2-41.oe2403sp1"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP4","package":"rpm","fixed_in":["4.18.2-41.oe2403sp4"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP3","package":"rpm","fixed_in":["4.18.2-41.oe2403sp3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm-apidocs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm-build","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm-build-libs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm-cron","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm-libs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm-plugin-systemd-inhibit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm-python","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:7","package":"rpm-sign","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm-apidocs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm-build","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm-build-libs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm-cron","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm-libs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm-plugin-systemd-inhibit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm-python","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:RHEL:7","package":"rpm-sign","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.3-48.0.3.el7_9.tuxcare.els2"}]}],"bundled":3},{"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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(rhoai)"}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:82378","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-78367","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2521857","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://github.com/rpm-software-management/rpm/issues/4314","tags":["exploit","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78367","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-pghw-ch4m-h3f9"},{"url":"https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2026-1792688613.html","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-95519","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-95521","tags":["advisory"]},{"url":"https://errata.tuxcare.com/els_os/rhel7els/CLSA-2026-1792689108.html","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-78367","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3860","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3861","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3862","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3863","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3928","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-84837","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-84838","tags":["report"]},{"url":"https://access.redhat.com/security/updates/classification/","tags":["article"]},{"url":"https://images.redhat.com/","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_82378.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-78367","tags":["advisory","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478408","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-84837","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84837","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2462222","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-84838","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84838","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-78367","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-78367","title":"Rpm: rpmbuild gettarspec() crafted tar member name → macro injection","description":"A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).","status":"published","published":"2026-08-24T13:48:52.103Z","modified":"2026-11-06T07:44:59.903Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-94"],"updated_at":"2026-11-06T08:57:32.08691Z"}],"euvd":[{"id":"EUVD-2026-64885","description":"A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).","status":"published","published":"2026-08-24T13:48:52Z","modified":"2026-11-06T07:44:59Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-06T09:04:28.113071Z"}],"ghsa":[{"id":"GHSA-pghw-ch4m-h3f9","title":"A flaw was found in rpmbuild. When rpmbuild processes a crafted tarball in tarball mode, a...","description":"A flaw was found in rpmbuild. When rpmbuild processes a crafted tarball in tarball mode, a specially designed tar member name can lead to macro injection. This vulnerability allows a remote attacker to execute arbitrary code on the system by convincing a user to build a malicious tarball.","status":"published","published":"2026-08-24T15:31:52Z","modified":"2026-08-24T18:32:55Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-74","CWE-94"],"updated_at":"2026-11-02T15:10:54.733778Z"}],"nvd":[{"id":"CVE-2026-78367","description":"A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).","status":"published","published":"2026-08-24T14:17:04.767Z","modified":"2026-11-06T08:17:36.58Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-94"],"updated_at":"2026-11-06T11:59:56.786002Z"}],"osv":[{"id":"DEBIAN-CVE-2026-78367","description":"A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).","status":"published","published":"2026-08-24T14:17:04.767Z","modified":"2026-11-07T09:47:36.855978447Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-07T10:14:19.880839Z"},{"id":"OESA-2026-3860","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 flaw was found in rpmbuild. When rpmbuild processes a crafted tarball in tarball mode, a specially designed tar member name can lead to macro injection. This vulnerability allows a remote attacker to execute arbitrary code on the system by convincing a user to build a malicious tarball.(CVE-2026-78367)","status":"published","published":"2026-09-14T16:35:05Z","modified":"2026-09-13T16:45:51.152348672Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-3861","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 flaw was found in rpmbuild. When rpmbuild processes a crafted tarball in tarball mode, a specially designed tar member name can lead to macro injection. This vulnerability allows a remote attacker to execute arbitrary code on the system by convincing a user to build a malicious tarball.(CVE-2026-78367)","status":"published","published":"2026-09-14T16:35:06Z","modified":"2026-09-13T16:45:51.149585751Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-3862","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 flaw was found in rpmbuild. When rpmbuild processes a crafted tarball in tarball mode, a specially designed tar member name can lead to macro injection. This vulnerability allows a remote attacker to execute arbitrary code on the system by convincing a user to build a malicious tarball.(CVE-2026-78367)","status":"published","published":"2026-09-14T16:35:06Z","modified":"2026-09-13T16:45:51.597886522Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-3863","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 flaw was found in rpmbuild. When rpmbuild processes a crafted tarball in tarball mode, a specially designed tar member name can lead to macro injection. This vulnerability allows a remote attacker to execute arbitrary code on the system by convincing a user to build a malicious tarball.(CVE-2026-78367)","status":"published","published":"2026-09-14T16:35:06Z","modified":"2026-09-13T16:45:50.803876569Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-3928","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 flaw was found in rpmbuild. When rpmbuild processes a crafted tarball in tarball mode, a specially designed tar member name can lead to macro injection. This vulnerability allows a remote attacker to execute arbitrary code on the system by convincing a user to build a malicious tarball.(CVE-2026-78367)","status":"published","published":"2026-09-20T13:23:18Z","modified":"2026-09-20T13:30:26.117687393Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"RHSA-2026:82378","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","status":"published","published":"2026-10-14T10:32:49Z","modified":"2026-10-14T10:48:08.929380972Z","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":"2026-11-02T15:53:23.547034Z"},{"id":"UBUNTU-CVE-2026-78367","description":"A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).","status":"published","published":"2026-08-24T14:17:00Z","modified":"2026-10-17T13:01:08.99110091Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:57:18.015985Z"},{"id":"CLSA-2026-1792688613","title":"rpm: Fix of 3 CVEs","description":"- CVE-2026-95519: do not macro expand manifest entries and package paths\n  in rpmgi before opening them\n- CVE-2026-95521: do not macro expand source package file basenames when\n  installing or rebuilding a source RPM\n- CVE-2026-78367: do not macro expand the spec file name when parsing a\n  spec, such as one taken from a tarball by rpmbuild -t","status":"published","published":"2026-10-22T17:03:45Z","modified":"2026-10-26T09:43:50.105926489Z","updated_at":"2026-11-02T15:43:54.981307Z"},{"id":"CLSA-2026-1792689108","title":"rpm: Fix of 3 CVEs","description":"- CVE-2026-95519: do not macro expand manifest entries and package paths\n  in rpmgi before opening them\n- CVE-2026-95521: do not macro expand source package file basenames when\n  installing or rebuilding a source RPM\n- CVE-2026-78367: do not macro expand the spec file name when parsing a\n  spec, such as one taken from a tarball by rpmbuild -t","status":"published","published":"2026-10-22T17:12:00Z","modified":"2026-10-26T09:43:15.039059008Z","updated_at":"2026-11-02T15:43:54.981307Z"}]}}