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CVE-2024-21626VulnerabilityPublished Updated

Red Hat Security Advisory: OpenShift Container Platform 4.12.49 packages and security update

Affects Red HatSource GCVE Database

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Public exploit available (Metasploit) · 18% EPSS · fixed in Red Hat package updates : patch Red Hat as a priority.

Data as of 29 Oct 2026, 07:15 UTC

Severity
Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
18.9% chance of exploitation in 30 days – higher than 97% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.12.49

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Feb 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    1 Metasploit module

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 29 Oct 2026.

What to do

AI-suggested

Upgrades can be performed using the OpenShift CLI (oc) or web console following official upgrade instructions. Applying this update fully mitigates the file descriptor leak vulnerability. No additional mitigation steps are specified by the vendor.

Description

Red Hat OpenShift Container Platform 4.12.49 includes a security update addressing a file descriptor leak vulnerability in runc, identified as CVE-2024-21626, also known as "Leaky Vessels." This vulnerability has been assigned a moderate severity rating by Red Hat Product Security. The update is available as RPM packages and container images, and users are advised to upgrade their clusters using the OpenShift CLI or web console. Public exploit code is available via Metasploit, but no exploitation in the wild has been reported.

References

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