CVE-2026-47840

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM 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 — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 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(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
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 21× in last 7d / 103× 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.

Showing the most recent 100 of 154 total refreshes for this CVE.

  1. 2026-08-30 06:58 UTCEG score recompute
  2. 2026-08-30 06:58 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-28 21:41 UTCEPSS rescore
  5. 2026-08-27 21:47 UTCEG score recompute
  6. 2026-08-27 21:47 UTCGHSA enrichment
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-27 01:14 UTCEG score recompute
  9. 2026-08-27 01:14 UTCGHSA enrichment
  10. 2026-08-26 14:46 UTCEPSS rescore
  11. 2026-08-26 03:57 UTCGHSA enrichment
  12. 2026-08-25 13:56 UTCEG score recompute
  13. 2026-08-25 13:56 UTCGHSA enrichment
  14. 2026-08-25 13:49 UTCEPSS rescore
  15. 2026-08-25 00:42 UTCEG score recompute
  16. 2026-08-25 00:42 UTCGHSA enrichment
  17. 2026-08-24 11:26 UTCEG score recompute
  18. 2026-08-24 11:26 UTCGHSA enrichment
  19. 2026-08-23 22:18 UTCGHSA enrichment
  20. 2026-08-23 08:55 UTCEG score recompute
  21. 2026-08-23 08:55 UTCGHSA enrichment
  22. 2026-08-23 00:19 UTCEPSS rescore
  23. 2026-08-22 19:47 UTCGHSA enrichment
  24. 2026-08-22 06:40 UTCEG score recompute
  25. 2026-08-22 06:40 UTCGHSA enrichment
Show 75 more
  1. 2026-08-21 23:49 UTCEPSS rescore
  2. 2026-08-21 17:33 UTCGHSA enrichment
  3. 2026-08-21 04:26 UTCEG score recompute
  4. 2026-08-21 04:26 UTCGHSA enrichment
  5. 2026-08-20 22:55 UTCEPSS rescore
  6. 2026-08-20 15:19 UTCGHSA enrichment
  7. 2026-08-20 01:52 UTCEG score recompute
  8. 2026-08-20 01:52 UTCGHSA enrichment
  9. 2026-08-19 17:04 UTCEPSS rescore
  10. 2026-08-19 09:50 UTCGHSA enrichment
  11. 2026-08-18 20:44 UTCEG score recompute
  12. 2026-08-18 20:44 UTCGHSA enrichment
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-18 02:56 UTCEG score recompute
  15. 2026-08-18 02:56 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 12:59 UTCGHSA enrichment
  18. 2026-08-16 23:52 UTCEG score recompute
  19. 2026-08-16 23:52 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 10:44 UTCEG score recompute
  22. 2026-08-16 10:44 UTCGHSA enrichment
  23. 2026-08-16 02:14 UTCEPSS rescore
  24. 2026-08-15 21:38 UTCGHSA enrichment
  25. 2026-08-15 08:30 UTCEG score recompute
  26. 2026-08-15 08:30 UTCGHSA enrichment
  27. 2026-08-15 01:30 UTCEPSS rescore
  28. 2026-08-14 19:22 UTCGHSA enrichment
  29. 2026-08-14 06:15 UTCEG score recompute
  30. 2026-08-14 06:15 UTCGHSA enrichment
  31. 2026-08-13 22:00 UTCEPSS rescore
  32. 2026-08-13 17:08 UTCGHSA enrichment
  33. 2026-08-13 03:12 UTCGHSA enrichment
  34. 2026-08-12 14:05 UTCEG score recompute
  35. 2026-08-12 14:05 UTCGHSA enrichment
  36. 2026-08-12 13:51 UTCEPSS rescore
  37. 2026-08-12 00:57 UTCGHSA enrichment
  38. 2026-08-11 11:50 UTCEG score recompute
  39. 2026-08-11 11:50 UTCGHSA enrichment
  40. 2026-08-11 00:00 UTCEPSS rescore
  41. 2026-08-10 22:43 UTCGHSA enrichment
  42. 2026-08-10 09:35 UTCGHSA enrichment
  43. 2026-08-09 20:29 UTCEG score recompute
  44. 2026-08-09 20:29 UTCGHSA enrichment
  45. 2026-08-09 13:46 UTCEPSS rescore
  46. 2026-08-09 07:22 UTCGHSA enrichment
  47. 2026-08-08 18:15 UTCEG score recompute
  48. 2026-08-08 18:15 UTCGHSA enrichment
  49. 2026-08-08 16:37 UTCEPSS rescore
  50. 2026-08-08 05:07 UTCEG score recompute
  51. 2026-08-08 05:07 UTCGHSA enrichment
  52. 2026-08-07 16:00 UTCGHSA enrichment
  53. 2026-08-07 02:53 UTCEG score recompute
  54. 2026-08-07 02:53 UTCGHSA enrichment
  55. 2026-08-06 13:47 UTCEPSS rescore
  56. 2026-08-06 13:46 UTCGHSA enrichment
  57. 2026-08-06 00:39 UTCEG score recompute
  58. 2026-08-06 00:39 UTCGHSA enrichment
  59. 2026-08-05 19:17 UTCEPSS rescore
  60. 2026-08-05 11:32 UTCGHSA enrichment
  61. 2026-08-04 21:53 UTCEG score recompute
  62. 2026-08-04 21:53 UTCGHSA enrichment
  63. 2026-08-04 15:10 UTCEPSS rescore
  64. 2026-08-04 10:39 UTCEPSS rescore
  65. 2026-08-04 08:44 UTCGHSA enrichment
  66. 2026-08-03 19:36 UTCEG score recompute
  67. 2026-08-03 19:36 UTCGHSA enrichment
  68. 2026-08-03 10:36 UTCEPSS rescore
  69. 2026-08-03 06:29 UTCGHSA enrichment
  70. 2026-08-02 17:13 UTCGHSA enrichment
  71. 2026-08-02 04:06 UTCEG score recompute
  72. 2026-08-02 04:05 UTCGHSA enrichment
  73. 2026-08-02 02:27 UTCEPSS rescore
  74. 2026-08-01 14:58 UTCEG score recompute
  75. 2026-08-01 14:58 UTCGHSA enrichment

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 0% probability of exploitation in the next 30 days, which ranks it in the top 88.0% of all scored CVEs.
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.

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