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CVE-2026-123876ModerateLocalRevised 13 Nov

Mariner · CWE-184: Incomplete List of Disallowed Inputs

No KEV listing collectedCVSS 4.4Fix not stated
MSRC advisory NVD CVE.org

Assessment

Podman: containers-common: containers-common: default seccomp af_vsock/netlink_audit deny rules bypassable via 32-bit truncation

Severity
Moderate
CVSS base score
4.4
Impact
Not stated
Exploitation detected
Unknown: not stated by MSRC
Exploitability
Not assessed
Publicly disclosed
Unknown: not stated by MSRC
EPSS · 30-day forecast
No EPSS score collected
Customer action
Required: follow the MSRC remediation guidance
More details
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Public detection template
No Nuclei template is listed in the current collected catalog
Component
Mariner
Weakness
CWE-184: Incomplete List of Disallowed Inputs
Issued by
redhat
Published
11 Nov 2026 · November 2026
Last revised
13 Nov 2026Information published.
CVSS 3.1 base metricsRed raises the risk · green lowers it
Attack vector
LocalAV:L
Attack complexity
LowAC:L
Privileges required
LowPR:L
User interaction
NoneUI:N
Scope
UnchangedS:U
Confidentiality
LowC:L
Integrity
LowI:L
Availability
NoneA:N

Updates that fix it

0 KBs

No KB listed

No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.

Affected products

Mariner, Open Source Software
4 affected products
  • azl3 kubevirt 1.8.4-4 on Azure Linux 3.0
  • azl3 kubevirt 1.8.4-5 on Azure Linux 3.0
  • azl3 kubevirt-openvmm 1.9.0-1 on Azure Linux 3.0
  • azl3 libcontainers-common 20240213-3 on Azure Linux 3.0

What changed

  1. Affected products: azl3 kubevirt 1.8.4-4 on Azure Linux 3.0, azl3 kubevirt-openvmm 1.9.0-1 on Azure Linux 3.0, azl3 libcontainers-common 20240213-3 on Azure Linux 3.0 → azl3 kubevirt 1.8.4-4 on Azure Linux 3.0, azl3 kubevirt 1.8.4-5 on Azure Linux 3.0, azl3 kubevirt-openvmm 1.9.0-1 on Azure Linux 3.0, azl3 libcontainers-common 20240213-3 on Azure Linux 3.0
  2. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  3. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  4. Affected products: azl3 libcontainers-common 20240213-3 on Azure Linux 3.0 → azl3 kubevirt 1.8.4-4 on Azure Linux 3.0, azl3 kubevirt-openvmm 1.9.0-1 on Azure Linux 3.0, azl3 libcontainers-common 20240213-3 on Azure Linux 3.0
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (12)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 14 Nov 2026 · 08:16:23 UTC Last revised12 Nov 2026 01:48 UTC → 13 Nov 2026 14:46 UTC
  2. 14 Nov 2026 · 08:16:23 UTC Affected productsazl3 kubevirt 1.8.4-4 on Azure Linux 3.0, azl3 kubevirt-openvmm 1.9.0-1 on Azure Linux 3.0, azl3 libcontainers-common 20240213-3 on Azure Linux 3.0 → azl3 kubevirt 1.8.4-4 on Azure Linux 3.0, azl3 kubevirt 1.8.4-5 on Azure Linux 3.0, azl3 kubevirt-openvmm 1.9.0-1 on Azure Linux 3.0, azl3 libcontainers-common 20240213-3 on Azure Linux 3.0
  3. 13 Nov 2026 · 12:10:20 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  4. 13 Nov 2026 · 12:10:20 UTC Source coverage: public-exploit-codeIncomplete → Current
  5. 13 Nov 2026 · 12:10:20 UTC Source coverage: first-epssIncomplete → Current
  6. 13 Nov 2026 · 12:10:20 UTC Source coverage: msrc-cvrfIncomplete → Current
  7. 13 Nov 2026 · 11:07:20 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  8. 13 Nov 2026 · 11:07:20 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  9. 13 Nov 2026 · 11:07:20 UTC Source coverage: first-epssCurrent → Incomplete
  10. 13 Nov 2026 · 11:07:20 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  11. 12 Nov 2026 · 09:04:19 UTC Last revised11 Nov 2026 01:06 UTC → 12 Nov 2026 01:48 UTC
  12. 12 Nov 2026 · 09:04:19 UTC Affected productsazl3 libcontainers-common 20240213-3 on Azure Linux 3.0 → azl3 kubevirt 1.8.4-4 on Azure Linux 3.0, azl3 kubevirt-openvmm 1.9.0-1 on Azure Linux 3.0, azl3 libcontainers-common 20240213-3 on Azure Linux 3.0

Explore global source statements, affected packages and advisory history for CVE-2026-123876. The catalog has a separate collection scope from Microsoft release records.

More advisories, affected versions and source history

cve-program · CVE-2026-123876

Published

containers-common-main

https://catalog.redhat.com/software/containers/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Hardened Images",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "containers-common-main",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0.70.0-1.hum1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:hummingbird:1"
                    ]
                }

containers-common

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "containers-common",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:10"
                    ]
                }

container-tools:rhel8/containers-common

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "container-tools:rhel8/containers-common",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:8"
                    ]
                }

containers-common

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "containers-common",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:9"
                    ]
                }

podman

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Hardened Images",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "podman",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:hummingbird:1"
                    ]
                }

skopeo

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Hardened Images",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "skopeo",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:hummingbird:1"
                    ]
                }

containers-common

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "containers-common",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                }

openshift/ose-rhel-coreos-8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift/ose-rhel-coreos-8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                }

openshift/ose-rhel-coreos-9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift/ose-rhel-coreos-9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                }

openshift/ose-rhel-coreos-9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 5",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift/ose-rhel-coreos-9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:5"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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