Vulnerability in Containers Crun
CVE-2026-88264
A flaw was found in crun. When the container configuration does not give /dev a dedicated mount, terminal setup can redirect /dev/console onto an attacker-controlled path, including via the read-only-rootfs bind-mount fallback. Affected versions are crun 1.29.1 and earlier. Default configurations that mount a fresh /dev are not exposed. No fixed release is available yet.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: -0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-88264 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- github.com/containers/crun/
- access.redhat.com/errata/RHSA-2026:71668 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-88264?
- CVE-2026-88264 is a medium-severity vulnerability in Containers Crun, classified under Improper Link Resolution Before File Access. CVSS score: 5.6/10. Published 2026-09-10.
- How severe is CVE-2026-88264?
- Medium severity. CVSS v3 base score is 5.6 out of 10.