Quick answers
- Is CVE-2026-16466 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16466 being exploited in the wild.
- How severe is CVE-2026-16466?
- High severity, with a CVSS score of 8.8, published 14 September 2026.
- Which products and versions are affected?
- IBM DataStage 5.4.0.0.
- Is there a fix for CVE-2026-16466?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-16466 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-16466?
- Check whether you run IBM DataStage at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
CVE-2026-16466 is an OS command injection vulnerability (CWE-78) in IBM DataStage running on Cloud Pak for Data 5.4.0.0. The vulnerability arises from improper neutralization of special elements in OS commands, allowing an authenticated attacker to inject and execute arbitrary system commands. The attack vector is network-based and requires valid user authentication; no special privileges or user interaction are needed. Successful exploitation grants the attacker command execution with the privileges of the DataStage process, potentially enabling data exfiltration, lateral movement, or infrastructure compromise. Patch availability status is not documented in the advisory content provided.
Affected products
- IBM DataStage 5.4.0.0
Timeline
- 2026-09-14: disclosed