CVE-2026-23938

MEDIUMNVD 4.94.9—
EchelonGraph scoreMEDIUM confidence

Score 4.9 from GitHub Security Advisory (severity: LOW) published 2026-08-18. NVD baseline CVSS 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.9Exploit: None knownExposed services: Not assessed

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

An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted preprocessing/script item JavaScript scripts, leading to potential denial of service.

CVSS v3
4.9
EG Score
4.9MEDIUMmedium confidence
EG Risk
22
EG Risk 22/100CISA 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
Severity49% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
26th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 18, 2026

Last Modified

September 23, 2026

Advisory Details (1)

Auto-updated Sep 23, 2026
No patch confirmed yet.
generic

Loading...

https://support.zabbix.com/browse/ZBX-28075

Vendor Advisories for CVE-2026-23938(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
zabbix1:6.0.14+dfsg-1 ... 1:7.0.9+dfsg-1~bpo12+1 (28 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
zabbix1:7.0.10+dfsg-2 ... 1:7.0.29+dfsg-2 (8 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
zabbix1:7.0.10+dfsg-2, 1:7.0.22+dfsg-1, 1:7.0.22+dfsg-1.1, 1:7.0.22+dfsg-1~bpo13+1, 1:7.0.22+dfsg-1~deb13u1
  • every version up to 1:7.0.27+dfsg-1: fixed in 1:7.0.27+dfsg-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 51× 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. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 21:45 UTCGHSA enrichment
  3. 2026-10-03 17:43 UTCEG score recompute
  4. 2026-10-03 17:43 UTCGHSA enrichment
  5. 2026-10-02 09:21 UTCEG score recompute
  6. 2026-10-02 09:21 UTCGHSA enrichment
  7. 2026-10-01 19:49 UTCEPSS rescore
  8. 2026-10-01 09:43 UTCEG score recompute
  9. 2026-10-01 09:43 UTCGHSA enrichment
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-30 09:55 UTCEG score recompute
  12. 2026-09-30 09:55 UTCGHSA enrichment
  13. 2026-09-29 15:21 UTCEPSS rescore
  14. 2026-09-29 07:20 UTCEG score recompute
  15. 2026-09-29 07:20 UTCGHSA enrichment
  16. 2026-09-28 13:51 UTCEPSS rescore
  17. 2026-09-28 07:41 UTCEG score recompute
  18. 2026-09-28 07:41 UTCGHSA enrichment
  19. 2026-09-27 13:47 UTCEPSS rescore
  20. 2026-09-27 08:02 UTCEG score recompute
  21. 2026-09-27 08:02 UTCGHSA enrichment
  22. 2026-09-26 15:58 UTCEPSS rescore
  23. 2026-09-26 00:26 UTCEPSS rescore
  24. 2026-09-24 16:09 UTCEG score recompute
  25. 2026-09-24 16:09 UTCGHSA enrichment
Show 57 more
  1. 2026-09-24 14:03 UTCEPSS rescore
  2. 2026-09-23 16:00 UTCEG score recompute▲ 2.80
  3. 2026-09-23 16:00 UTCGHSA enrichment
  4. 2026-09-23 15:56 UTCNVD updateCVSS v3 → 4.9 · severity → MEDIUM
  5. 2026-09-20 20:15 UTCEPSS rescore
  6. 2026-09-20 16:31 UTCEG score recompute
  7. 2026-09-20 16:31 UTCGHSA enrichment
  8. 2026-09-18 19:27 UTCEPSS rescore
  9. 2026-09-17 13:14 UTCEG score recompute
  10. 2026-09-17 13:14 UTCGHSA enrichment
  11. 2026-09-16 14:07 UTCEPSS rescore
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-14 09:36 UTCEG score recompute
  14. 2026-09-14 09:36 UTCGHSA enrichment
  15. 2026-09-13 16:47 UTCEPSS rescore
  16. 2026-09-12 15:01 UTCEPSS rescore
  17. 2026-09-11 14:52 UTCEPSS rescore
  18. 2026-09-11 06:29 UTCEG score recompute
  19. 2026-09-11 06:29 UTCGHSA enrichment
  20. 2026-09-10 09:34 UTCEPSS rescore
  21. 2026-09-08 22:00 UTCEPSS rescore
  22. 2026-09-08 03:21 UTCEG score recompute
  23. 2026-09-08 03:21 UTCGHSA enrichment
  24. 2026-09-07 16:01 UTCEPSS rescore
  25. 2026-09-06 13:47 UTCEPSS rescore
  26. 2026-09-06 13:47 UTCEPSS rescore
  27. 2026-09-05 00:13 UTCEG score recompute
  28. 2026-09-05 00:13 UTCGHSA enrichment
  29. 2026-09-04 05:06 UTCEPSS rescore
  30. 2026-09-02 14:11 UTCEPSS rescore
  31. 2026-09-01 21:03 UTCEG score recompute
  32. 2026-09-01 21:03 UTCGHSA enrichment
  33. 2026-09-01 13:53 UTCEPSS rescore
  34. 2026-09-01 04:39 UTCEPSS rescore
  35. 2026-08-31 03:21 UTCEG score recompute
  36. 2026-08-31 03:20 UTCGHSA enrichment
  37. 2026-08-30 19:17 UTCEPSS rescore
  38. 2026-08-30 01:22 UTCEPSS rescore
  39. 2026-08-28 21:41 UTCEPSS rescore
  40. 2026-08-28 00:13 UTCEG score recompute
  41. 2026-08-28 00:12 UTCGHSA enrichment
  42. 2026-08-27 14:25 UTCEPSS rescore
  43. 2026-08-26 14:46 UTCEPSS rescore
  44. 2026-08-25 13:48 UTCEPSS rescore
  45. 2026-08-24 21:00 UTCEG score recompute
  46. 2026-08-24 21:00 UTCGHSA enrichment
  47. 2026-08-23 00:19 UTCEPSS rescore
  48. 2026-08-21 23:49 UTCEPSS rescore
  49. 2026-08-21 17:52 UTCEG score recompute
  50. 2026-08-21 17:52 UTCGHSA enrichment
  51. 2026-08-20 22:55 UTCEPSS rescore
  52. 2026-08-19 17:03 UTCEPSS rescore
  53. 2026-08-18 14:44 UTCEG score recompute
  54. 2026-08-18 13:48 UTCEG score recompute
  55. 2026-08-18 13:20 UTCEG score recompute
  56. 2026-08-18 12:26 UTCEG score recompute
  57. 2026-08-18 12:24 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-23938?
CVE-2026-23938 is a medium vulnerability published on August 18, 2026. An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted preprocessing/script item JavaScript scripts, leading to potential denial of service.
When was CVE-2026-23938 disclosed?
CVE-2026-23938 was first published on August 18, 2026, with the most recent update on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23938 actively exploited?
CVE-2026-23938 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-23938?
CVE-2026-23938 has a CVSS v3 base score of 4.9 (NVD).
How do I remediate CVE-2026-23938?
No fix for CVE-2026-23938 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-23938 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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