CVE-2024-21626VulnerabilityPublished 27 Feb 2025Updated 10 Oct 2026

Red Hat Security Advisory: OpenShift Container Platform 4.15.46 bug fix and security update

Affects Red HatSource GCVE Database

Mentioned vulnerabilities

Not known to be exploited · public exploit available (Metasploit) · 18% EPSS : upgrade to 4.15.46 or 1.1.12 as a priority.

Data as of 25 Oct 2026, 19:02 UTC

Severity

High

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 4.15.46, 1.1.12

Exploitation evidence

Disclosed: evidence found.
CVE published 27 Feb 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
1 Metasploit module
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 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Red Hat to 4.15.46 or 1.1.12.

Affected software

Product	Affected	Fixed in
Red Hat Product Security Red Hat	Affected >=4.15.0 <4.15.46 Red Hat Red Hat OpenShift Enterprise Red Hat OpenShift Container Platform 4.15 s390x Red Hat OpenShift Container Platform 4.18 src microshift-0:4.18.1-202502201910.p0.g84f67ec.assembly.4.18.1.el9.src Red Hat OpenShift Container Platform 4.14 Ironic content for Red Hat OpenShift Container Platform 4.14 Red Hat OpenShift Container Platform 4.13 >=v1.0.0-rc93, < 1.1.12 Red Hat Enterprise Linux Red Hat Enterprise Linux AppStream (v. 9) runc-4:1.1.12-1.el9_3.src SUSE aarch64 crun-0:1.20-bp156.2.3.1.aarch64 i586 crun-0:1.20-bp156.2.3.1.i586	Fixed in 4.15.46 1.1.12

AI-suggested

Red Hat has released OpenShift Container Platform 4.15.46 containing fixes for these vulnerabilities. Users should upgrade to version 4.15.46 using the OpenShift CLI (oc) or web console as soon as the update is available in their release channel. Detailed upgrade instructions are available at Red Hat's official documentation. No additional mitigations are indicated or required beyond applying this update.

Description

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.15.46. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2025:1713 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.openshift.com/container-platform/4.15/release_notes/ocp-4-15 release-notes.html Security Fix(es): * runc: file descriptor leak (CVE-2024-21626) * golang.org/x/net/html: Non-linear parsing of case-insensitive content in golang.org/x/net/html (CVE-2024-45338) * kernel: media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format (CVE-2024-53104) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.15/updating/updating_a_cluster/updating-cluster-cli.html

Impact

The vulnerabilities fixed in this update could lead to resource leaks (file descriptor leak), potential parsing issues that might affect processing of HTML content, and improper handling of undefined video frame types in the kernel media driver. These issues could affect the stability or security posture of OpenShift Container Platform deployments. The advisory classifies the overall impact as Important (high severity). No active exploitation has been reported.

Summary

This Red Hat security advisory covers OpenShift Container Platform 4.15.46, which addresses three security vulnerabilities: CVE-2024-21626 (a file descriptor leak in runc), CVE-2024-45338 (non-linear parsing of case-insensitive content in golang.org/x/net/html), and CVE-2024-53104 (kernel media uvcvideo driver skipping parsing of undefined frame types). The advisory provides updated container images and references RPM package updates. The vulnerabilities impact OpenShift Container Platform 4.15 versions from 4.15.0 up to but not including 4.15.46. Red Hat rates the security impact as Important and recommends upgrading to the fixed version. Detailed upgrade instructions and image digests for multiple architectures are provided. No CVSS scores are included in the advisory, and no known active exploits have been reported.

CWE-200Exposure of Sensitive Information to an Unauthorized Actor (opens in a new tab)
Class weaknessLikelihood of exploit: HighCWE Top 25 (2025): #20OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Architecture and Design · Separation of Privilege
Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
OWASP Cheat Sheets
Error Handling (opens in a new tab)
Logging (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.4 (opens in a new tab)
V14.3.3 (opens in a new tab)
V7.3.3 (opens in a new tab)
Attack patterns
Subverting Environment Variable Values (opens in a new tab)
ICMP Echo Request Ping (opens in a new tab)
TCP SYN Scan (opens in a new tab)
Enumerate Mail Exchange (MX) Records (opens in a new tab)
DNS Zone Transfers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-770Allocation of Resources Without Limits or Throttling (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #25
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
Requirements
Clearly specify the minimum and maximum expectations for capabilities, and dictate which behaviors are acceptable when resource allocation reaches limits.
Architecture and Design
Limit the amount of resources that are accessible to unprivileged users. Set per-user limits for resources. Allow the system administrator to define these limits. Be careful to avoid CWE-410.
Architecture and Design
Design throttling mechanisms into the system architecture. The best protection is to limit the amount of resources that an unauthorized user can cause to be expended.
OWASP Cheat Sheets
Abuse Case (opens in a new tab)
OWASP ASVS 4.0.3
V8.1.4 (opens in a new tab)
V13.4.1 (opens in a new tab)
V11.1.4 (opens in a new tab)
Attack patterns
XML Ping of the Death (opens in a new tab)
Exponential Data Expansion (opens in a new tab)
Serialized Data Parameter Blowup (opens in a new tab)
Serialized Data with Nested Payloads (opens in a new tab)
Oversized Serialized Data Payloads (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-787Out-of-bounds Write (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #5
The product writes data past the end, or before the beginning, of the intended buffer.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-403Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak') (opens in a new tab)
Base weakness
A process does not close sensitive file descriptors before invoking a child process, which allows the child to perform unauthorized I/O operations using those descriptors.
CWE-668Exposure of Resource to Wrong Sphere (opens in a new tab)
Class weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
OWASP Cheat Sheets
Authorization (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 10 Aug 2026, 20:50 UTC

Public exploits and detection1 Metasploit module

WeaknessesCWE-200, CWE-770, CWE-787 +2

Technical details

References

Community reviews

Related threats