Quick answers
- Is CVE-2026-3603 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-3603 being exploited in the wild.
- How severe is CVE-2026-3603?
- High severity, with a CVSS score of 7.1, published 26 May 2026.
- Which products and versions are affected?
- IBM Engineering Lifecycle Management - Jazz Foundation 7.0.3 iFix001 - iFix021, 7.1.0 iFix001 - iFix009, 7.2.0, 7.2.0 iFix001.
- Is there a fix for CVE-2026-3603?
- A patch was published on 2026-05-26. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-3603 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-3603?
- Check whether you run IBM Engineering Lifecycle Management - Jazz Foundation 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
An XML External Entity (XXE) injection vulnerability exists in the Jazz Foundation component of IBM Engineering Lifecycle Management. The issue stems from improper restriction of XML external entity references (CWE-611) when the application processes XML data. A remote attacker with low-level authentication can exploit this by sending a specially crafted XML payload to the server. Successful exploitation allows the attacker to read local files, access internal network resources, or trigger a denial-of-service condition via memory exhaustion. IBM has released patches (iFixes) for versions 7.0.3, 7.1.0, and 7.2.0 to address this vulnerability.
Affected products
- IBM Engineering Lifecycle Management - Jazz Foundation 7.0.3 iFix001 - iFix021, 7.1.0 iFix001 - iFix009, 7.2.0, 7.2.0 iFix001
Timeline
- 2026-05-26: disclosed
- 2026-05-26: advisory
- 2026-05-26: patched