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VulnerabilityPublished Updated

CVE-2026-1784: Red Hat OpenShift Container Platform 4.12 · External Control of System or Configuration Setting

Affects Red Hat OpenShift Container Platform 4.12Source CVE Database V5

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Not known to be exploited · CVSS 8.8 High.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  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 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat OpenShift Container Platform 4.12Affected–Fixed in–
Red HatRed Hat OpenShift Container Platform 4.13Affected–Fixed in–
Red HatRed Hat OpenShift Container Platform 4.14Affected–Fixed in–
Red HatRed Hat OpenShift Container Platform 4.15Affected–Fixed in–
Red HatRed Hat OpenShift Container Platform 4.16Affected–Fixed in–
Red HatRed Hat OpenShift Container Platform 4.18Affected–Fixed in–

AI-suggested

Red Hat has released fixed container images and packages in OpenShift Container Platform versions 4.19.33 and 4.21.19 that address CVE-2026-1784. Users should upgrade their OpenShift clusters to these versions as soon as possible following the official Red Hat upgrade documentation. The vendor manages remediation for these on-premise/private cloud deployments, and no additional mitigation steps are indicated beyond applying the official updates.

Description

The Route OpenShift resource allows to define routes to make pods reachable at a subdomain through HAProxy. It was found that the checks performed on the spec.path YAML stanza in a Route document was insufficient and could allow a controlled injection of the HAProxy configuration.

References

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