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: 0.3%, top 74% 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.

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
8.6(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
26%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 13, 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 29× in last 7d / 37× 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. 2026-08-21 04:34 UTCEG score recompute
  2. 2026-08-21 04:34 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 17:26 UTCGHSA enrichment
  5. 2026-08-20 06:17 UTCGHSA enrichment
  6. 2026-08-19 19:09 UTCEG score recompute
  7. 2026-08-19 19:08 UTCGHSA enrichment
  8. 2026-08-19 17:03 UTCEPSS rescore
  9. 2026-08-19 07:57 UTCGHSA enrichment
  10. 2026-08-18 20:49 UTCEG score recompute
  11. 2026-08-18 20:49 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 09:41 UTCGHSA enrichment
  14. 2026-08-17 22:33 UTCEG score recompute
  15. 2026-08-17 22:33 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 11:24 UTCGHSA enrichment
  18. 2026-08-17 00:16 UTCEG score recompute
  19. 2026-08-17 00:16 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 13:08 UTCEG score recompute
  22. 2026-08-16 13:08 UTCGHSA enrichment
  23. 2026-08-16 02:14 UTCEPSS rescore
  24. 2026-08-16 02:00 UTCGHSA enrichment
  25. 2026-08-15 14:52 UTCGHSA enrichment
Show 12 more
  1. 2026-08-15 03:44 UTCEG score recompute
  2. 2026-08-15 03:44 UTCGHSA enrichment
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-14 16:35 UTCGHSA enrichment
  5. 2026-08-14 05:27 UTCGHSA enrichment
  6. 2026-08-13 18:19 UTCEG score recompute
  7. 2026-08-13 18:19 UTCGHSA enrichment
  8. 2026-08-13 17:27 UTCEG score recompute
  9. 2026-08-13 17:27 UTCGHSA enrichment
  10. 2026-08-13 15:24 UTCEG score recompute
  11. 2026-08-13 14:22 UTCEG score recompute
  12. 2026-08-13 14:21 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database on August 13, 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% probability of exploitation in the next 30 days, which ranks it in the top 74.2% of all scored CVEs.
What is the CVSS score of CVE-2026-19734?
CVE-2026-19734 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-19734?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19734, 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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