Microsoft · Podman: containers-common: containers-common: default seccomp af_vsock/netlink_audit deny rules bypassable via 32-bit
Affects MicrosoftSource GCVE Database
Not known to be exploited · CVSS 4.4 Medium.
Data as of 11 Nov 2026, 09:47 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 4.4 |
|---|
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10containers-common | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8container-tools:rhel8/containers-common | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9containers-common | Affected– | Fixed in– |
| Red Hat Hardened Imagescontainers-common | Affected– | Fixed in– |
| Red Hat Hardened Imagespodman | Affected– | Fixed in– |
| Red Hat Hardened Imagesskopeo | Affected– | Fixed in– |
AI-suggested
Users should monitor Microsoft Security Response Center advisories for updates. Until a fix is available, consider restricting use of affected versions on 32-bit systems or applying additional container security controls.
Description
CVE-2026-123876 is a vulnerability in Podman containers-common version 3.0 involving default seccomp rules that deny af_vsock and netlink_audit. These deny rules can be bypassed on 32-bit systems, potentially allowing unintended access or actions.