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VulnerabilityPublished Updated

CVE-2026-49332: openshift/oauth-proxy · CWE-436

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Authoritative record:CVE-2026-49332· High 8.5

Not known to be exploited · CVSS 8.5 High · fixed in Red Hat OpenShift Container Platform 4.12 package updates : patch Red Hat OpenShift Container Platform 4.12 soon.

Data as of 11 Nov 2026, 23:24 UTC

CVSS 3.1 base score
8.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.14.71
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Jul 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 11 Nov 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 4.17Affected–Fixed in–

AI-suggested

Red Hat has released a security update in OpenShift Container Platform 4.14.71 that addresses this vulnerability. Users of OpenShift Container Platform 4.14 are advised to upgrade to version 4.14.71 or later to apply the fix. Instructions for upgrading the cluster and applying the update are available in the official Red Hat documentation. No alternative mitigations are specified; applying the official update is the recommended action.

Description

A vulnerability in openshift/oauth-proxy allows an authenticated low-privilege user to forge an identity header by exploiting the handling of underscore-variant headers. This can override the legitimate authenticated identity in upstream applications. The issue arises because the proxy sets authenticated identity headers using dash-variant keys but does not strip underscore-variant keys, which WSGI and PHP frameworks normalize to the same variable.

References

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