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Vendor Workaround
Enforcing SELinux may still deny vsock; do not rely on the unfixed seccomp denies; ship SCMP_CMP_MASKED_EQ profile updates.
Tracking
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Fri, 06 Nov 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in the default seccomp profile used by Podman via containers-common. Deny rules for AF_VSOCK and NETLINK_AUDIT compared socket arguments with unmasked 64-bit equality. Because the kernel truncates those int arguments to 32 bits, setting upper bits can bypass the deny rules. | |
| Title | Podman: containers-common: containers-common: default seccomp af_vsock/netlink_audit deny rules bypassable via 32-bit truncation | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
|
| Weaknesses | CWE-184 | |
| CPEs | cpe:/a:redhat:enterprise_linux:10 cpe:/a:redhat:enterprise_linux:8 cpe:/a:redhat:enterprise_linux:9 cpe:/a:redhat:hummingbird:1 cpe:/a:redhat:openshift:4 cpe:/a:redhat:openshift:5 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
|
| References |
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| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-11-06T17:38:41.186Z
Reserved: 2026-11-06T16:23:26.995Z
Link: CVE-2026-123876
No data.
Status : Awaiting Analysis
Published: 2026-11-06T18:18:05.410
Modified: 2026-11-06T18:18:05.590
Link: CVE-2026-123876
No data.
OpenCVE Enrichment
Updated: 2026-11-06T18:45:08Z