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crun: crun: Privilege escalation due to incorrect parsing of the `--user` option

🗓️ 19 May 2026 18:12:32Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 19 Views

Crun privilege escalation via misparsed --user in crun exec; uid 1 is treated as root.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
CVE-2026-30892
25 Mar 202623:57
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AlmaLinux 9 : crun (ALSA-2026:6621)
6 Apr 202600:00
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AlmaLinux 10 : crun (ALSA-2026:6622)
6 Apr 202600:00
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Fedora 42 : crun (2026-32cf2c53f7)
17 Apr 202600:00
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Fedora 43 : crun (2026-4747ff73a3)
2 Apr 202600:00
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MiracleLinux 9 : crun-1.27-1.el9_7 (AXSA:2026-411:02)
7 Apr 202600:00
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Oracle Linux 10 : crun (ELSA-2026-19020)
15 Jul 202600:00
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nessus
Oracle Linux 9 : crun (ELSA-2026-19178)
23 Jun 202600:00
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Oracle Linux 9 : crun (ELSA-2026-6621)
7 Apr 202600:00
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Oracle Linux 10 : crun (ELSA-2026-6622)
7 Apr 202600:00
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64crun1.27-1.el9_8crun-1.27-1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lecrun1.27-1.el9_8crun-1.27-1.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xcrun1.27-1.el9_8crun-1.27-1.el9_8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64crun1.27-1.el9_8crun-1.27-1.el9_8.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64crun-debuginfo1.27-1.el9_8crun-debuginfo-1.27-1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lecrun-debuginfo1.27-1.el9_8crun-debuginfo-1.27-1.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xcrun-debuginfo1.27-1.el9_8crun-debuginfo-1.27-1.el9_8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64crun-debuginfo1.27-1.el9_8crun-debuginfo-1.27-1.el9_8.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64crun-debugsource1.27-1.el9_8crun-debugsource-1.27-1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lecrun-debugsource1.27-1.el9_8crun-debugsource-1.27-1.el9_8.ppc64le.rpm
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09 Jul 2026 17:43Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.8
EPSS0.00159
SSVC
19