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Vendor Workaround
Do not run untrusted images with krun and passt until a fixed crun is released.
Tracking
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Thu, 10 Sep 2026 18:30:00 +0000
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ssvc
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Thu, 10 Sep 2026 12:15:00 +0000
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| Metrics |
threat_severity
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threat_severity
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Thu, 10 Sep 2026 08:30:00 +0000
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| Description | A flaw was found in crun. When crun is built with libkrun and a container is started rootful with passt networking (krun.use_passt), crun can execute attacker-controlled payload from the container image with host root privileges. The issue is a regression in crun 1.29. It affects crun >= 1.29 | |
| Title | Crun: crun: rootful krun with passt executes container payload as host root | |
| First Time appeared |
Redhat
Redhat hummingbird |
|
| Weaknesses | CWE-269 | |
| CPEs | cpe:/a:redhat:hummingbird:1 | |
| Vendors & Products |
Redhat
Redhat hummingbird |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-10T17:36:01.879Z
Reserved: 2026-09-01T03:55:17.620Z
Link: CVE-2026-84042
Updated: 2026-09-10T17:34:06.864Z
Status : Awaiting Analysis
Published: 2026-09-10T09:17:03.260
Modified: 2026-09-10T18:18:08.943
Link: CVE-2026-84042
OpenCVE Enrichment
Updated: 2026-09-10T09:30:10Z
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CWE-269
Improper Privilege Management