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CVE-2026-115424

MEDIUM 5.5

Published 2026-10-22 · Last modified 2026-10-22

A flaw was found in the OpenShift client oc. When extracting container image layers with oc image extract, the application fails to properly sanitize symbolic and hard link targets pointing to absolute paths or to sibling directories of the extraction destination. An attacker who supplies a malicious container image can exploit this vulnerability by embedding links, and a chained file entry, that reference locations outside the intended extraction directory. This allows the attacker to write attacker-controlled content to arbitrary locations on the host filesystem with the privileges of the user running the command, potentially leading to file modification outside the destination directory.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 6th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

5.5CVSS 3.1 · MEDIUM

  • ConfidentialityNone
  • IntegrityHigh
  • AvailabilityNone

What an attacker needs

  • ⚠Access: Requires local access to the host
  • ✓Privileges: No account or privileges required
  • ⚠User interaction: A user must take an action (click / open a file)
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Red Hat

Products Red Hat Openshift Container Platform 4

Weakness (CWE)

  • CWE-61: UNIX Symbolic Link (Symlink) Following

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

References and research data (JSON)

Vendor product assessments

  • openshift-clients as a component of Red Hat OpenShift Container Platform 4 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/openshift-clients

    • workaround: Treat container images as trusted inputs when using oc image extract. Do not extract images from registries or publishers you do not control or have not verified. Where possible, run oc image extract as an unprivileged user and into a dedicated, isolated destination directory, and avoid fixed/predictable destination paths in automated or CI pipelines. Restrict who can modify the image references that automated extraction jobs consume. There is no configuration option to disable only this link-extraction behavior. Apply updated oc client packages or rebuilt platform images when Red Hat publishes them for your product and stream.
    • none available: Fix deferred
    Red Hat · CVE-2026-115424 · Updated 2026-10-23T00:37:56+00:00
  • openshift-clients-redistributable as a component of Red Hat OpenShift Container Platform 4 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/openshift-clients-redistributable

    • workaround: Treat container images as trusted inputs when using oc image extract. Do not extract images from registries or publishers you do not control or have not verified. Where possible, run oc image extract as an unprivileged user and into a dedicated, isolated destination directory, and avoid fixed/predictable destination paths in automated or CI pipelines. Restrict who can modify the image references that automated extraction jobs consume. There is no configuration option to disable only this link-extraction behavior. Apply updated oc client packages or rebuilt platform images when Red Hat publishes them for your product and stream.
    • none available: Fix deferred
    Red Hat · CVE-2026-115424 · Updated 2026-10-23T00:37:56+00:00
  • openshift-clients.src as a component of Red Hat OpenShift Container Platform 4 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/openshift-clients?arch=src

    • workaround: Treat container images as trusted inputs when using oc image extract. Do not extract images from registries or publishers you do not control or have not verified. Where possible, run oc image extract as an unprivileged user and into a dedicated, isolated destination directory, and avoid fixed/predictable destination paths in automated or CI pipelines. Restrict who can modify the image references that automated extraction jobs consume. There is no configuration option to disable only this link-extraction behavior. Apply updated oc client packages or rebuilt platform images when Red Hat publishes them for your product and stream.
    • none available: Fix deferred
    Red Hat · CVE-2026-115424 · Updated 2026-10-23T00:37:56+00:00
  • openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4 · known affected

    Vendor assessment for this product only.

    pkg:oci/ose-rhel-coreos-8?repository_url=registry.redhat.io/openshift/ose-rhel-coreos-8

    • workaround: Treat container images as trusted inputs when using oc image extract. Do not extract images from registries or publishers you do not control or have not verified. Where possible, run oc image extract as an unprivileged user and into a dedicated, isolated destination directory, and avoid fixed/predictable destination paths in automated or CI pipelines. Restrict who can modify the image references that automated extraction jobs consume. There is no configuration option to disable only this link-extraction behavior. Apply updated oc client packages or rebuilt platform images when Red Hat publishes them for your product and stream.
    • none available: Fix deferred
    Red Hat · CVE-2026-115424 · Updated 2026-10-23T00:37:56+00:00
  • openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · known affected

    Vendor assessment for this product only.

    pkg:oci/ose-rhel-coreos-9?repository_url=registry.redhat.io/openshift/ose-rhel-coreos-9

    • workaround: Treat container images as trusted inputs when using oc image extract. Do not extract images from registries or publishers you do not control or have not verified. Where possible, run oc image extract as an unprivileged user and into a dedicated, isolated destination directory, and avoid fixed/predictable destination paths in automated or CI pipelines. Restrict who can modify the image references that automated extraction jobs consume. There is no configuration option to disable only this link-extraction behavior. Apply updated oc client packages or rebuilt platform images when Red Hat publishes them for your product and stream.
    • none available: Fix deferred
    Red Hat · CVE-2026-115424 · Updated 2026-10-23T00:37:56+00:00

All CVSS metrics

  • MEDIUM 5.5 v3.1 · CNA Primary
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
  • MEDIUM 5.5 v3.1 · NVD Primary
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

References

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS