CVE-2026-74241CWE-90

CVE-2026-74241

Medium · published August 15, 2026

CVSS v3.1
4.8
EPSS
0%
Percentile
22.6
In the wild
Unconfirmed
What it is

A flaw was found in Red Hat Quay's external Lightweight Directory Access Protocol (LDAP) authentication handling. When an LDAP referral is returned during authentication, the system does not properly escape the username input. This allows an attacker to inject LDAP filter metacharacters, enabling user-existence oracle attacks at the referral Directory Name (DN). This could also potentially influence which DN is used for password binding in multi-domain Active Directory environments.

The record
Technical detail
CVSS v3.1
4.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00310 · 22.6th percentile
Weakness
CWE-90 · Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Published
2026-08-15T03:16Z
Affected products (2)
ProductVersionsFixed in
redhat/openshift_update_serviceall versions—
redhat/quayall versions—
References (2)
https://access.redhat.com/security/cve/CVE-2026-74241 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2516141 · [email protected]
EPSS history
Timeline
  • 14 AUG 22:43Z
    Quay: ldap referral filter injection in quay external ldap authentication
    cvelistv5