CVE-2026-81540

HIGHPre-NVD 8.58.5—
EchelonGraph scoreHIGH confidence

Score 8.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-11. a secondary CVSS source baseline 8.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.5Exploit: 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 could allow a remote authenticated attacker to overwrite ruleset files belonging to other tenants due to a path traversal vulnerability.

CVSS v3
8.5
EG Score
8.5(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity85% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Sep 10, 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-2026-81540(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 26× in last 7d / 61× 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. 2026-09-25 00:30 UTCEG score recompute
  2. 2026-09-25 00:30 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 11:51 UTCGHSA enrichment
  5. 2026-09-23 23:12 UTCEG score recompute
  6. 2026-09-23 23:12 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 10:28 UTCGHSA enrichment
  9. 2026-09-22 21:49 UTCEG score recompute
  10. 2026-09-22 21:49 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 09:10 UTCEG score recompute
  13. 2026-09-22 09:10 UTCGHSA enrichment
  14. 2026-09-21 21:09 UTCEPSS rescore
  15. 2026-09-21 20:27 UTCGHSA enrichment
  16. 2026-09-21 07:48 UTCEG score recompute
  17. 2026-09-21 07:48 UTCGHSA enrichment
  18. 2026-09-20 20:16 UTCEPSS rescore
  19. 2026-09-20 19:09 UTCGHSA enrichment
  20. 2026-09-20 06:30 UTCGHSA enrichment
  21. 2026-09-19 17:49 UTCEG score recompute
  22. 2026-09-19 17:49 UTCGHSA enrichment
  23. 2026-09-19 05:10 UTCEG score recompute
  24. 2026-09-19 05:10 UTCGHSA enrichment
  25. 2026-09-18 19:28 UTCEPSS rescore
Show 36 more
  1. 2026-09-18 16:30 UTCGHSA enrichment
  2. 2026-09-18 03:51 UTCEG score recompute
  3. 2026-09-18 03:51 UTCGHSA enrichment
  4. 2026-09-17 15:12 UTCGHSA enrichment
  5. 2026-09-17 02:34 UTCEG score recompute
  6. 2026-09-17 02:33 UTCGHSA enrichment
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-16 13:52 UTCEG score recompute
  9. 2026-09-16 13:52 UTCGHSA enrichment
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-16 00:53 UTCGHSA enrichment
  12. 2026-09-15 16:35 UTCEG score recompute
  13. 2026-09-15 16:35 UTCGHSA enrichment
  14. 2026-09-15 15:25 UTCEG score recompute
  15. 2026-09-15 15:25 UTCGHSA enrichment
  16. 2026-09-15 07:40 UTCEG score recompute
  17. 2026-09-15 07:40 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-14 19:01 UTCGHSA enrichment
  21. 2026-09-14 06:22 UTCGHSA enrichment
  22. 2026-09-13 17:44 UTCEG score recompute
  23. 2026-09-13 17:44 UTCGHSA enrichment
  24. 2026-09-13 05:05 UTCGHSA enrichment
  25. 2026-09-12 16:26 UTCEG score recompute
  26. 2026-09-12 16:26 UTCGHSA enrichment
  27. 2026-09-12 03:47 UTCGHSA enrichment
  28. 2026-09-11 15:08 UTCEG score recompute
  29. 2026-09-11 15:08 UTCGHSA enrichment
  30. 2026-09-11 14:53 UTCEPSS rescore
  31. 2026-09-11 14:53 UTCEPSS rescore
  32. 2026-09-11 10:58 UTCEG score recompute
  33. 2026-09-11 10:58 UTCGHSA enrichment
  34. 2026-09-10 22:19 UTCEG score recompute
  35. 2026-09-10 21:46 UTCEG score recompute
  36. 2026-09-10 21:44 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81540?
CVE-2026-81540 is a high vulnerability published on September 10, 2026. IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to overwrite ruleset files belonging to other tenants due to a path traversal vulnerability.
When was CVE-2026-81540 disclosed?
CVE-2026-81540 was first published in the National Vulnerability Database on September 10, 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-2026-81540 actively exploited?
CVE-2026-81540 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 56.5% of all scored CVEs.
What is the CVSS score of CVE-2026-81540?
CVE-2026-81540 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-81540?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81540, 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-2026-81540

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