CVE-2026-23931

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 79% 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
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potential loss of confidentiality.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 18, 2026

Last Modified

September 1, 2026

Advisory Details (1)

Auto-updated Aug 18, 2026
No patch confirmed yet.
generic

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https://support.zabbix.com/browse/ZBX-28070

Vendor Advisories for CVE-2026-23931(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 17× in last 7d / 78× 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. 2026-09-19 05:15 UTCEG score recompute
  2. 2026-09-19 05:15 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 05:08 UTCEG score recompute
  5. 2026-09-18 05:08 UTCGHSA enrichment
  6. 2026-09-17 05:01 UTCEG score recompute
  7. 2026-09-17 05:01 UTCGHSA enrichment
  8. 2026-09-16 14:07 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-16 04:53 UTCGHSA enrichment
  11. 2026-09-15 04:26 UTCEG score recompute
  12. 2026-09-15 04:26 UTCGHSA enrichment
  13. 2026-09-14 04:16 UTCEG score recompute
  14. 2026-09-14 04:16 UTCGHSA enrichment
  15. 2026-09-13 16:47 UTCEPSS rescore
  16. 2026-09-13 04:09 UTCEG score recompute
  17. 2026-09-13 04:09 UTCGHSA enrichment
  18. 2026-09-12 15:01 UTCEPSS rescore
  19. 2026-09-12 04:01 UTCEG score recompute
  20. 2026-09-12 04:01 UTCGHSA enrichment
  21. 2026-09-11 14:52 UTCEPSS rescore
  22. 2026-09-11 03:51 UTCEG score recompute
  23. 2026-09-11 03:51 UTCGHSA enrichment
  24. 2026-09-10 09:34 UTCEPSS rescore
  25. 2026-09-10 03:43 UTCGHSA enrichment
Show 63 more
  1. 2026-09-09 03:33 UTCEG score recompute
  2. 2026-09-09 03:33 UTCGHSA enrichment
  3. 2026-09-08 22:00 UTCEPSS rescore
  4. 2026-09-08 00:46 UTCEG score recompute
  5. 2026-09-08 00:46 UTCGHSA enrichment
  6. 2026-09-07 16:01 UTCEPSS rescore
  7. 2026-09-07 00:38 UTCEG score recompute
  8. 2026-09-07 00:37 UTCGHSA enrichment
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-06 00:23 UTCEG score recompute
  12. 2026-09-06 00:23 UTCGHSA enrichment
  13. 2026-09-05 00:10 UTCEG score recompute
  14. 2026-09-05 00:10 UTCGHSA enrichment
  15. 2026-09-04 05:06 UTCEPSS rescore
  16. 2026-09-03 22:36 UTCGHSA enrichment
  17. 2026-09-02 22:01 UTCEG score recompute
  18. 2026-09-02 22:01 UTCGHSA enrichment
  19. 2026-09-02 14:11 UTCEPSS rescore
  20. 2026-09-01 21:03 UTCEG score recompute
  21. 2026-09-01 21:03 UTCGHSA enrichment
  22. 2026-09-01 13:53 UTCEPSS rescore
  23. 2026-09-01 05:12 UTCEG score recompute
  24. 2026-09-01 05:12 UTCGHSA enrichment
  25. 2026-09-01 04:39 UTCEPSS rescore
  26. 2026-08-31 05:01 UTCEG score recompute
  27. 2026-08-31 05:01 UTCGHSA enrichment
  28. 2026-08-30 19:17 UTCEPSS rescore
  29. 2026-08-30 04:54 UTCEG score recompute
  30. 2026-08-30 04:53 UTCGHSA enrichment
  31. 2026-08-30 01:22 UTCEPSS rescore
  32. 2026-08-29 04:45 UTCEG score recompute
  33. 2026-08-29 04:45 UTCGHSA enrichment
  34. 2026-08-28 21:41 UTCEPSS rescore
  35. 2026-08-27 16:34 UTCEG score recompute
  36. 2026-08-27 16:34 UTCGHSA enrichment
  37. 2026-08-27 14:25 UTCEPSS rescore
  38. 2026-08-26 16:25 UTCEG score recompute
  39. 2026-08-26 16:25 UTCGHSA enrichment
  40. 2026-08-26 14:46 UTCEPSS rescore
  41. 2026-08-25 15:48 UTCEG score recompute
  42. 2026-08-25 15:48 UTCGHSA enrichment
  43. 2026-08-25 13:48 UTCEPSS rescore
  44. 2026-08-24 15:41 UTCEG score recompute
  45. 2026-08-24 15:40 UTCGHSA enrichment
  46. 2026-08-23 15:29 UTCEG score recompute
  47. 2026-08-23 15:29 UTCGHSA enrichment
  48. 2026-08-23 00:19 UTCEPSS rescore
  49. 2026-08-22 15:22 UTCEG score recompute
  50. 2026-08-22 15:22 UTCGHSA enrichment
  51. 2026-08-21 23:49 UTCEPSS rescore
  52. 2026-08-21 15:15 UTCEG score recompute
  53. 2026-08-21 15:15 UTCGHSA enrichment
  54. 2026-08-20 22:55 UTCEPSS rescore
  55. 2026-08-20 15:07 UTCEG score recompute
  56. 2026-08-20 15:07 UTCGHSA enrichment
  57. 2026-08-19 17:03 UTCEPSS rescore
  58. 2026-08-19 14:51 UTCGHSA enrichment
  59. 2026-08-18 14:44 UTCEG score recompute
  60. 2026-08-18 13:48 UTCEG score recompute
  61. 2026-08-18 13:20 UTCEG score recompute
  62. 2026-08-18 12:26 UTCEG score recompute
  63. 2026-08-18 12:24 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-23931?
CVE-2026-23931 is a medium vulnerability published on August 18, 2026. The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potential loss of confidentiality.
When was CVE-2026-23931 disclosed?
CVE-2026-23931 was first published in the National Vulnerability Database on August 18, 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-2026-23931 actively exploited?
CVE-2026-23931 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 79.4% of all scored CVEs.
What is the CVSS score of CVE-2026-23931?
CVE-2026-23931 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-23931?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23931, 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

Explore the affected products and dependency analysis for CVE-2026-23931

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