Quick answers
- Is CVE-2026-81208 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-81208 being exploited in the wild.
- How severe is CVE-2026-81208?
- High severity, with a CVSS score of 7.7, published 23 September 2026.
- Which products and versions are affected?
- IBM DataStage 5.4.0.0.
- Is there a fix for CVE-2026-81208?
- 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-2026-81208 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-81208?
- 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
The vulnerability is a decryption oracle in the pull endpoint that decrypts {dsnextenc}/{encval} blobs using a shared, never-rotated cluster-wide DSNEXT_SEC_KEY and re-encrypts them under attacker-supplied parameters. This is functionally equivalent to key extraction. The attack requires authenticated network access and knowledge of encrypted credential material, but the product itself intentionally exposes ciphertext, making the second precondition trivial. The shared key and lack of key rotation enable cross-tenant exploitation.
Affected products
- IBM DataStage 5.4.0.0
Timeline
- 2026-09-23: disclosed