# CVE-2026-3603: IBM Engineering Lifecycle Management - Jazz Foundation is vulnerable to XML external entity injection (XXE) attack

> An authenticated attacker can exploit an XML external entity injection vulnerability to expose sensitive information or consume memory resources.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 May 2026
- **Updated:** 27 May 2026
- **Also known as:** GHSA-2589-88hx-72gf

## What is CVE-2026-3603?

CVE-2026-3603 is a high-severity vulnerability in IBM Engineering Lifecycle Management, published on 26 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

IBM Engineering Lifecycle Management 7.0.3 Interim Fix 001 through  Interim Fix 021, 7.1.0  Interim Fix 001 through  Interim Fix 009, and 7.2.0 and 7.2.0 Interim Fix 001 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. An authenticated attacker could exploit this vulnerability to expose sensitive information or consume memory resources.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2026-3603?

It affects 1 product.


Products: Ibm Engineering Lifecycle Management.

## How do I fix CVE-2026-3603?

No fix has been published for CVE-2026-3603 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3603 being exploited?

There is no known exploitation of CVE-2026-3603 in the wild and no public exploit code.

## Other vulnerabilities in IBM Engineering Lifecycle Management

- [CVE-2026-3660](https://insights.sbomify.com/CVE-2026-3660/): IBM Engineering Lifecycle Management - Jazz Foundation is vulnerable to Authentication Bypass (critical 9.8)
- [CVE-2026-4051](https://insights.sbomify.com/CVE-2026-4051/): IBM Engineering Lifecycle Management - Jazz Foundation is vulnerable to Server Post-Auth Remote Code Execution (high 7.2)
- [CVE-2025-36033](https://insights.sbomify.com/CVE-2025-36033/): IBM Engineering Lifecycle Management - Global Configuration Management is vulnerable to cross-site scripting (medium 5.4)
- [CVE-2026-14979](https://insights.sbomify.com/CVE-2026-14979/): IBM Engineering Lifecycle Management - Jazz Foundation is vulnerable to XML Entity Expansion attack (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3603 and fix it if it is affected.

What it is: CVE-2026-3603 is a high-severity vulnerability in IBM Engineering Lifecycle Management, published on 26 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-3603 in the wild and no public exploit code.

Affected product: IBM Engineering Lifecycle Management. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-3603/ (Markdown: https://insights.sbomify.com/CVE-2026-3603/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3603
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3603
- OSV: https://osv.dev/vulnerability/CVE-2026-3603

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-3603/
Summaries are generated and may contain mistakes; the official description above is the record.