How severe is CVE-2026-84421?

CVE-2026-84421 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-84421 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-84421?

CVE-2026-84421 affects Ibm Datastage On Cloud Pak For Data. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-84421?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-84421 published?

CVE-2026-84421 was published on 2026-09-29 and last updated on 2026-10-02.

CVE-2026-84421

CVE-2026-84421 is a high-severity vulnerability in Ibm Datastage On Cloud Pak For Data with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Ibm Datastage On Cloud Pak For Data
Published: 2026-09-29
Last modified: 2026-10-02

Description

IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to execute arbitrary code due to improper validation of paths during archive extraction.

Frequently asked questions

What is CVE-2026-84421?: IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to execute arbitrary code due to improper validation of paths during archive extraction.
How severe is CVE-2026-84421?: CVE-2026-84421 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-84421 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-84421?: CVE-2026-84421 affects Ibm Datastage On Cloud Pak For Data. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-84421?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-84421 published?: CVE-2026-84421 was published on 2026-09-29 and last updated on 2026-10-02.

References

https://www.ibm.com/support/pages/node/7288649

Affected products (1)

cpe:2.3:a:ibm:datastage_on_cloud_pak_for_data:5.4.0:*:*:*:*:*:*:*

More vulnerabilities in Ibm Datastage On Cloud Pak For Data

CVE-2026-16346 — Critical (CVSS 9.9): IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to execute arbitrary commands…
CVE-2026-16338 — Critical (CVSS 9.9): IBM DataStage on Cloud Pak for Data 5.4.0.0 IBM DataStage could allow a remote authenticated attacker to perform an…
CVE-2026-81549 — Critical (CVSS 9.6): IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to obtain sensitive information…
CVE-2026-82107 — Critical (CVSS 9.6): IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to obtain sensitive information…
CVE-2026-82100 — Critical (CVSS 9.6): IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to cause a denial of service…
CVE-2026-80424 — Critical (CVSS 9.1): IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to create arbitrary files due…

All CVEs affecting Ibm Datastage On Cloud Pak For Data →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-55393 — Critical (CVSS 10.0): Unvalidated pathnames in the web interface in Teledyne FLIR Aware2 versions through 6.9.0.2 (PackBot) and 1.7.9…
CVE-2026-97163 — Critical (CVSS 10.0): Joomla Extension - lomart.fr - Unauthenticated remote code installation in UP plugin extension 5.0.0-5.2.0, 6.0.0-6.0.29
CVE-2026-80155 — Critical (CVSS 10.0): Lantronix SLC8000 before firmware v9.7.0.5, SLC9000 before firmware v9.7.0.2, EMG8500/EMG7500 before firmware v9.7.0.1,…
CVE-2026-70200 — Critical (CVSS 10.0): Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an…
CVE-2026-85706 — Critical (CVSS 10.0): GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 before 18.11.12, 19.0 before 19.0.9,…
CVE-2026-76606 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Path Traversal via image element in Fabrik < 4.7.2.

Browse all CWE-22 (Path Traversal) vulnerabilities →