CVE-2026-19433

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 83% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.6Exploit: None knownExposed: 0

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

Authorization Bypass Through User-Controlled Key in the contact management component in Roskus Prospero Flow CRM before 5.4.8 allows authenticated users of any company to blindly overwrite the contact data of another company and to download that contact's personal data as a vCard via the contact's numeric identifier, because the save and export operations retrieve the record without constraining the query to the authenticated user's company.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity86% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

August 10, 2026

Last Modified

September 1, 2026

Advisory Details (3)

Auto-updated Aug 10, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github_commit.
generic🟡 PoC Available

CVE-2026-19433 · Authorization Bypass Through User-Controlled Key in Prospero Flow CRM allows writing and reading other companies' contacts | Vulnerabilities published by Secur0

https://secur0.com/en/cna/cve-list/cve-2026-19433-idor-in-prospero-flow-crm-contact-save-and-vcard-export
github_release Patch Available

v5.5.3 - Big security upgrade

Patch available: Roskus/prospero-flow-crm v5.5.3

https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3
github_commit Patch Available

commit f16b4af2027b (Roskus/prospero-flow-crm)

Patch available: Roskus/prospero-flow-crm v5.5.3 (contains commit f16b4af2027b)

https://github.com/Roskus/prospero-flow-crm/commit/f16b4af2027b17bef7c604c92dbd86cf38082398

Vendor Advisories for CVE-2026-19433(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 19× in last 7d / 99× 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 148 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-19433?
CVE-2026-19433 is a high vulnerability published on August 10, 2026. Authorization Bypass Through User-Controlled Key in the contact management component in Roskus Prospero Flow CRM before 5.4.8 allows authenticated users of any company to blindly overwrite the contact data of another company and to download that contact's personal data as a vCard via the contact's…
When was CVE-2026-19433 disclosed?
CVE-2026-19433 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19433 actively exploited?
CVE-2026-19433 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 83.0% of all scored CVEs.
What is the CVSS score of CVE-2026-19433?
CVE-2026-19433 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-19433?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19433, 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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