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VulnerabilityPublished Updated

CVE-2026-74241: Red Hat OpenShift Update Service · LDAP Injection

Affects Red Hat OpenShift Update ServiceSource CVE Database V5

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Not known to be exploited · CVSS 4.8 Medium.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 3.1 base score
4.8Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.14.8
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Aug 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 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat OpenShift Update Serviceopenshift-update-service/openshift-update-service-rhel8Affected–Fixed in–
Red Hat Quay 3quay/quay-rhel8Affected–Fixed in–
Red Hat Quay 3quay/quay-rhel9Affected–Fixed in–

AI-suggested

Currently, no mitigation or patch meeting Red Hat Product Security criteria for ease of use, deployment, applicability, or stability is available. Users should monitor Red Hat advisories for updates. No immediate action is mandated by Red Hat.

Description

CVE-2026-74241 is a moderate severity vulnerability in Red Hat Quay's external LDAP authentication. It arises from improper escaping of username input when an LDAP referral is returned during authentication. This flaw allows injection of LDAP filter metacharacters, enabling user-existence oracle attacks against referral Directory Names (DNs) and potentially influencing password binding in multi-domain Active Directory environments. No direct authentication bypass is possible. No patch or mitigation meeting Red Hat's criteria is currently available.

References

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