CVE-2026-16338

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-14. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.9Exploit: None knownExposed: 0

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

IBM DataStage on Cloud Pak for Data 5.4.0.0 IBM DataStage could allow a remote authenticated attacker to perform an arbitrary file write due to improper validation of file paths.

CVSS v3
9.9
EG Score
9.9(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity99% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
48%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Security Bulletin: DataStage on Cloud Pak for Data has several vulnerabilities due to open source software

https://www.ibm.com/support/pages/node/7286562

Vendor Advisories for CVE-2026-16338(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 38× in last 7d / 38× 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 15:07 UTCGHSA enrichment
  2. 2026-09-19 10:43 UTCGHSA enrichment
  3. 2026-09-19 06:22 UTCGHSA enrichment
  4. 2026-09-19 02:00 UTCGHSA enrichment
  5. 2026-09-18 21:38 UTCEG score recompute
  6. 2026-09-18 21:38 UTCGHSA enrichment
  7. 2026-09-18 19:27 UTCEPSS rescore
  8. 2026-09-18 17:17 UTCGHSA enrichment
  9. 2026-09-18 12:56 UTCGHSA enrichment
  10. 2026-09-18 08:35 UTCGHSA enrichment
  11. 2026-09-18 04:14 UTCGHSA enrichment
  12. 2026-09-17 23:53 UTCGHSA enrichment
  13. 2026-09-17 19:32 UTCEG score recompute
  14. 2026-09-17 19:32 UTCGHSA enrichment
  15. 2026-09-17 13:00 UTCGHSA enrichment
  16. 2026-09-17 08:39 UTCGHSA enrichment
  17. 2026-09-17 04:18 UTCGHSA enrichment
  18. 2026-09-16 23:57 UTCGHSA enrichment
  19. 2026-09-16 19:36 UTCGHSA enrichment
  20. 2026-09-16 17:56 UTCEG score recompute
  21. 2026-09-16 17:56 UTCGHSA enrichment
  22. 2026-09-16 14:07 UTCEPSS rescore
  23. 2026-09-16 13:10 UTCGHSA enrichment
  24. 2026-09-16 08:48 UTCEG score recompute
  25. 2026-09-16 08:48 UTCGHSA enrichment
Show 13 more
  1. 2026-09-16 05:14 UTCEPSS rescore
  2. 2026-09-16 04:23 UTCGHSA enrichment
  3. 2026-09-15 23:48 UTCGHSA enrichment
  4. 2026-09-15 19:25 UTCGHSA enrichment
  5. 2026-09-15 15:03 UTCGHSA enrichment
  6. 2026-09-15 10:40 UTCGHSA enrichment
  7. 2026-09-15 06:16 UTCGHSA enrichment
  8. 2026-09-15 01:54 UTCGHSA enrichment
  9. 2026-09-14 21:33 UTCEG score recompute
  10. 2026-09-14 21:33 UTCGHSA enrichment
  11. 2026-09-14 20:21 UTCEG score recompute
  12. 2026-09-14 19:55 UTCEG score recompute
  13. 2026-09-14 19:54 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-16338?
CVE-2026-16338 is a critical vulnerability published on September 14, 2026. IBM DataStage on Cloud Pak for Data 5.4.0.0 IBM DataStage could allow a remote authenticated attacker to perform an arbitrary file write due to improper validation of file paths.
When was CVE-2026-16338 disclosed?
CVE-2026-16338 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16338 actively exploited?
CVE-2026-16338 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 52.0% of all scored CVEs.
What is the CVSS score of CVE-2026-16338?
CVE-2026-16338 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-16338?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16338, 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-2026-16338

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