CVE-2026-74241

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreHIGH confidence

Score 4.8 from GitHub Security Advisory published 2026-08-15. a secondary CVSS source baseline 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
4.8
EG Score
4.8(high)
EG Risk
26(Track)
EG Risk 26/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity48% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

August 14, 2026

Last Modified

August 18, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
Patch available. Sources: redhat.
redhat

2516141 – (CVE-2026-74241) CVE-2026-74241 quay: LDAP referral filter injection in Quay external LDAP authentication

https://bugzilla.redhat.com/show_bug.cgi?id=2516141
redhat Patch Available

CVE-2026-74241 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-74241

Vendor Advisories for CVE-2026-74241(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 24× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 19:19 UTCEG score recompute▲ 1.70
  3. 2026-08-20 19:19 UTCGHSA enrichment
  4. 2026-08-20 19:17 UTCNVD updateCVSS v3 → 6.5
  5. 2026-08-19 18:25 UTCEG score recompute
  6. 2026-08-19 18:25 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-18 15:18 UTCEG score recompute
  9. 2026-08-18 15:18 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-17 16:25 UTCEG score recompute
  13. 2026-08-17 16:25 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 03:03 UTCEG score recompute
  16. 2026-08-17 03:03 UTCGHSA enrichment
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 02:15 UTCEPSS rescore
  20. 2026-08-16 01:11 UTCEG score recompute
  21. 2026-08-16 01:11 UTCGHSA enrichment
  22. 2026-08-14 23:19 UTCEG score recompute
  23. 2026-08-14 22:49 UTCEG score recompute
  24. 2026-08-14 22:48 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74241?
CVE-2026-74241 is a medium vulnerability published on August 14, 2026. 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…
When was CVE-2026-74241 disclosed?
CVE-2026-74241 was first published in the National Vulnerability Database on August 14, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74241 actively exploited?
CVE-2026-74241 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 91.8% of all scored CVEs.
What is the CVSS score of CVE-2026-74241?
CVE-2026-74241 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-74241?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74241, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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