CVE-2026-19734

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: 0.6% (46th percentile of EPSS-scored CVEs). 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: 0.6%CVSS: 8.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Missing Authorization and Authorization Bypass Through User-Controlled Key in the product management component in Roskus Prospero Flow CRM before 5.4.7 allows authenticated users of any company to read the full sensitive data (price, cost, stock, SKU, and barcode) of another company's product and to hijack that product by reassigning its company_id, via the product's numeric identifier, because ProductUpdateController did not extend MainController and therefore required no authentication check on the read endpoint, and ProductRepository::save() retrieved the record via Product::find($data['id']) without constraining the query to the authenticated user's company before overwriting its company_id.

CVSS v3
8.6
EG Score
8.6HIGHmedium confidence
EG Risk
39
EG Risk 39/100CISA SSVC

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%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
46th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 13, 2026

Last Modified

September 1, 2026

Advisory Details (3)

Auto-updated Aug 13, 2026
Patch available. Sources: github_commit, github_release.
generic

CVE-2026-19734 · IDOR in Prospero Flow CRM allows cross-tenant product disclosure and hijacking | Vulnerabilities published by Secur0

https://secur0.com/en/cna/cve-list/cve-2026-19734-idor-in-prospero-flow-crm-allows-cross-tenant-product-disclosure-and-hijacking
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 f36c2a115f4c (Roskus/prospero-flow-crm)

Patch available: Roskus/prospero-flow-crm v5.5.3 (contains commit f36c2a115f4c)

https://github.com/Roskus/prospero-flow-crm/commit/f36c2a115f4c28c82181f1798c01582ae953b932

Vendor Advisories for CVE-2026-19734(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 / 93× 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 187 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-19734?
CVE-2026-19734 is a high vulnerability published on August 13, 2026. Missing Authorization and Authorization Bypass Through User-Controlled Key in the product management component in Roskus Prospero Flow CRM before 5.4.7 allows authenticated users of any company to read the full sensitive data (price, cost, stock, SKU, and barcode) of another company's product and…
When was CVE-2026-19734 disclosed?
CVE-2026-19734 was first published on August 13, 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-2026-19734 actively exploited?
CVE-2026-19734 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19734?
CVE-2026-19734 has a CVSS base score of 8.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19734?
A fix for CVE-2026-19734 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-19734 are linked in the Vendor Advisories panel on this page.

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