{"id":"CVE-2026-95521","aliases":["AZL-105326","CLSA-2026-1792688613","CLSA-2026-1792689108","DEBIAN-CVE-2026-95521","EUVD-2026-85878","GHSA-7prr-g333-3h48","UBUNTU-CVE-2026-95521"],"status":"published","title":"Rpm: rpm: shell command injection via macro expansion of source/spec file basenames when installing a source rpm","description":"A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via popen() while relocating the source file list. This allows arbitrary command execution as the invoking (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted .src.rpm.","severity":{"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","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00582,"percentile":0.48301,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2026-09-24T13:26:56Z","modified":"2026-11-06T07:38:08Z","affected":[{"source":"osv","ecosystem":"Azure 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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-2026-95521","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2537812","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-95521","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-7prr-g333-3h48"},{"url":"https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2026-1792688613.html","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78367","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-95519","tags":["advisory"]},{"url":"https://errata.tuxcare.com/els_os/rhel7els/CLSA-2026-1792689108.html","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-95521","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-95521","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-95521","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-95521","title":"Rpm: rpm: shell command injection via macro expansion of source/spec file basenames when installing a source rpm","description":"A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via popen() while relocating the source file list. This allows arbitrary command execution as the invoking (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted .src.rpm.","status":"published","published":"2026-09-24T13:26:56.782Z","modified":"2026-11-06T07:38:08.199Z","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","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-06T08:57:32.08691Z"}],"euvd":[{"id":"EUVD-2026-85878","description":"A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via popen() while relocating the source file list. This allows arbitrary command execution as the invoking (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted .src.rpm.","status":"published","published":"2026-09-24T13:26:56Z","modified":"2026-11-06T07:38:08Z","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":"2026-11-06T09:04:28.113071Z"}],"ghsa":[{"id":"GHSA-7prr-g333-3h48","title":"A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or...","description":"A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via popen() while relocating the source file list. This allows arbitrary command execution as the invoking (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted .src.rpm.","status":"published","published":"2026-09-24T15:31:31Z","modified":"2026-09-24T15:31:35Z","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"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:12:22.2852Z"}],"nvd":[{"id":"CVE-2026-95521","description":"A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via popen() while relocating the source file list. This allows arbitrary command execution as the invoking (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted .src.rpm.","status":"published","published":"2026-09-24T14:18:20.29Z","modified":"2026-11-06T08:17:39.71Z","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","assessor":"secondary"}],"cwes":["CWE-78"],"updated_at":"2026-11-06T11:59:57.419913Z"}],"osv":[{"id":"DEBIAN-CVE-2026-95521","description":"A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via popen() while relocating the source file list. This allows arbitrary command execution as the invoking (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted .src.rpm.","status":"published","published":"2026-09-24T14:18:20.29Z","modified":"2026-11-07T09:47:35.197295186Z","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":"2026-11-07T10:14:39.995311Z"},{"id":"UBUNTU-CVE-2026-95521","description":"A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via popen() while relocating the source file list. This allows arbitrary command execution as the invoking (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted .src.rpm.","status":"published","published":"2026-09-24T14:18:00Z","modified":"2026-10-17T13:01:19.556420938Z","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":"2026-11-02T16:57:44.071534Z"},{"id":"AZL-105326","title":"CVE-2026-95521 affecting package rpm 4.18.2-2","description":"A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via popen() while relocating the source file list. This allows arbitrary command execution as the invoking (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted .src.rpm.","status":"published","published":"2026-09-24T14:18:20Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:17.719431Z"},{"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"}]}}