CVE-2026-7891

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-08. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

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

A vulnerability has been identified in Mendix Runtime (All versions). Mendix documentation for access rules does not adequately describe the special behavior of the System.User entity, leaving developers without sufficient guidance to configure access rules securely. This documentation gap may lead application developers to unknowingly apply overly permissive access rules to System.User, resulting in unintended exposure of sensitive user data or privilege escalation within deployed Mendix applications.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

May 7, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Sep 7, 2026
No patch confirmed yet.
generic

CASE: MENDIX MISCONFIGURATION (again)

https://www.divd.nl/mendix.html
generic

Redirecting…

https://csirt.divd.nl/DIVD-2026-00006/
generic

SSA-814963

https://cert-portal.siemens.com/productcert/html/ssa-814963.html

Vendor Advisories for CVE-2026-7891(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 5× in last 7d / 34× 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 282 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-7891?
CVE-2026-7891 is a critical vulnerability published on May 7, 2026. A vulnerability has been identified in Mendix Runtime (All versions). Mendix documentation for access rules does not adequately describe the special behavior of the System.User entity, leaving developers without sufficient guidance to configure access rules securely. This documentation gap may lead…
When was CVE-2026-7891 disclosed?
CVE-2026-7891 was first published in the National Vulnerability Database on May 7, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7891 actively exploited?
CVE-2026-7891 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 80.4% of all scored CVEs.
What is the CVSS score of CVE-2026-7891?
CVE-2026-7891 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-7891?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7891, 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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