CVE-2026-19871

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (42nd 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
9.3EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.3Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Use of Hard-coded Credentials in the human resources component in Roskus Prospero Flow CRM before 5.15.9 allows unauthenticated remote attackers to authenticate as any employee onboarded through the standard flow, knowing only their email address, because the employee save controller falls back to the literal password "changeme" and the onboarding form provides no password field.

CVSS v3
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
57
EG Risk 57/100CISA 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
Severity93% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.
EPSS PROB
0.5%
EPSS %ILE
42nd
KEV
Not listed

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

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable yes (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 14, 2026

Last Modified

September 1, 2026

Advisory Details (2)

Auto-updated Sep 23, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

CVE-2026-19871 · Use of hard-coded credentials in Prospero Flow CRM allows access to employee accounts created through the onboarding flow | Vulnerabilities published by Secur0

https://secur0.com/en/cna/cve-list/cve-2026-19871-hardcoded-credentials-in-prospero-flow-crm-employee-onboarding
github_commit

commit 5cc01ed958db (Roskus/prospero-flow-crm)

Fix landed in Roskus/prospero-flow-crm commit 5cc01ed958db — awaiting tagged release

https://github.com/Roskus/prospero-flow-crm/commit/5cc01ed958db4ad0a026a8daa1c6a8bb98a43e66

Vendor Advisories for CVE-2026-19871(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 / 164× 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 321 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-19871?
CVE-2026-19871 is a critical vulnerability published on August 14, 2026. Use of Hard-coded Credentials in the human resources component in Roskus Prospero Flow CRM before 5.15.9 allows unauthenticated remote attackers to authenticate as any employee onboarded through the standard flow, knowing only their email address, because the employee save controller falls back to…
When was CVE-2026-19871 disclosed?
CVE-2026-19871 was first published on August 14, 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-2026-19871 actively exploited?
CVE-2026-19871 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19871?
CVE-2026-19871 has a CVSS base score of 9.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19871?
An upstream fix for CVE-2026-19871 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-19871 are linked in the Vendor Advisories panel on this page.

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