CVE-2026-47840

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-09. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

A network attacker positioned between UAA and its LDAP directory can impersonate the directory using any certificate from any trusted CA, then harvest the LDAP bind password and every end-user password sent during simple-bind authentication, and return forged group memberships that grant themselves admin scopes. This affects every deployment that authenticates users against LDAP over StartTLS. Affected versions: UAA versions prior to v78.13.0; Cf-deployment versions prior to v56.2.0.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
3.2%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 9, 2026

Advisory Details (1)

Auto-updated Jul 9, 2026
No patch confirmed yet.
generic

CVE-2026-47840 - LDAP StartTLS unconditionally disables hostname verification | Cloud Foundry

https://www.cloudfoundry.org/blog/cve-2026-47840-ldap-starttls-unconditionally-disables-hostname-verification/

Vendor Advisories for CVE-2026-47840(1)

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

Data Freshness Timeline

(refreshed 36× in last 7d / 36× 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. 2026-07-15 20:21 UTCEG score recompute
  2. 2026-07-15 20:21 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 07:14 UTCEG score recompute
  5. 2026-07-15 07:14 UTCGHSA enrichment
  6. 2026-07-15 02:00 UTCEPSS rescore
  7. 2026-07-14 18:07 UTCEG score recompute
  8. 2026-07-14 18:07 UTCGHSA enrichment
  9. 2026-07-14 04:59 UTCEG score recompute
  10. 2026-07-14 04:59 UTCGHSA enrichment
  11. 2026-07-13 22:30 UTCEPSS rescore
  12. 2026-07-13 15:52 UTCEG score recompute
  13. 2026-07-13 15:52 UTCGHSA enrichment
  14. 2026-07-13 06:13 UTCEPSS rescore
  15. 2026-07-13 02:44 UTCEG score recompute
  16. 2026-07-13 02:44 UTCGHSA enrichment
  17. 2026-07-12 13:36 UTCEG score recompute
  18. 2026-07-12 13:36 UTCGHSA enrichment
  19. 2026-07-12 05:46 UTCEPSS rescore
  20. 2026-07-12 00:29 UTCEG score recompute
  21. 2026-07-12 00:29 UTCGHSA enrichment
  22. 2026-07-11 11:22 UTCEG score recompute
  23. 2026-07-11 11:22 UTCGHSA enrichment
  24. 2026-07-11 08:27 UTCEPSS rescore
  25. 2026-07-10 22:15 UTCEG score recompute
Show 11 more
  1. 2026-07-10 22:14 UTCGHSA enrichment
  2. 2026-07-10 09:07 UTCEG score recompute
  3. 2026-07-10 09:07 UTCGHSA enrichment
  4. 2026-07-09 19:58 UTCEG score recompute
  5. 2026-07-09 19:58 UTCGHSA enrichment
  6. 2026-07-09 19:10 UTCEPSS rescore
  7. 2026-07-09 15:00 UTCNVD updateCVSS v4 → 9.3
  8. 2026-07-09 13:30 UTCMITRE cvelistV5CVSS v4 → 8.3
  9. 2026-07-09 07:50 UTCNVD updateCVSS v4 → 9.3
  10. 2026-07-09 06:51 UTCEG score recompute
  11. 2026-07-09 06:50 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-47840?
CVE-2026-47840 is a high vulnerability published on July 9, 2026. A network attacker positioned between UAA and its LDAP directory can impersonate the directory using any certificate from any trusted CA, then harvest the LDAP bind password and every end-user password sent during simple-bind authentication, and return forged group memberships that grant themselves…
When was CVE-2026-47840 disclosed?
CVE-2026-47840 was first published in the National Vulnerability Database on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47840 actively exploited?
CVE-2026-47840 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-47840?
CVE-2026-47840 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-47840?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47840, 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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