# CVE-2026-56587: HCL IEM was affected with Strict transport security not enforced

> Attackers can perform SSL stripping or man-in-the-middle attacks due to missing Strict Transport Security headers in HCL IEM.

- **Severity:** Low 3.7 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Jul 2026
- **Updated:** 22 Jul 2026
- **Also known as:** GHSA-9q58-6g9f-9x3r

## What is CVE-2026-56587?

CVE-2026-56587 is a low-severity vulnerability in HCLSoftware IntelliOps Event Management, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

HCL IEM was affected with Strict transport security not enforced. It may enable attackers to perform SSL stripping or man-in-the-middle attacks and compromise secure communications.

Weakness: CWE-523 (Unprotected Transport of Credentials)

## Which versions are affected by CVE-2026-56587?

It affects 1 product.


Products: Hcltech Intelliops Event Management.

## How do I fix CVE-2026-56587?

No fix has been published for CVE-2026-56587 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-56587 being exploited?

There is no known exploitation of CVE-2026-56587 in the wild and no public exploit code.

## Other vulnerabilities in HCLSoftware IntelliOps Event Management

- [CVE-2026-56584](https://insights.sbomify.com/CVE-2026-56584/): HCL IEM was affected with the Information disclosure nginx server (low 3.7)
- [CVE-2025-0249](https://insights.sbomify.com/CVE-2025-0249/): HCL IEM is affected by an improper invalidation of access or JWT token vulnerability (low 3.3)
- [CVE-2026-56585](https://insights.sbomify.com/CVE-2026-56585/): HCL IEM was affected with the Anti Clickjacking XFrame Options Header Missing (low 3.1)
- [CVE-2026-56586](https://insights.sbomify.com/CVE-2026-56586/): HCL IEM was affected with X-Content-Type-Options Header Missing (low 3.1)
- [CVE-2025-0251](https://insights.sbomify.com/CVE-2025-0251/): HCL IEM is affected by a concurrent login vulnerability (low 2.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-56587 and fix it if it is affected.

What it is: CVE-2026-56587 is a low-severity vulnerability in HCLSoftware IntelliOps Event Management, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-56587 in the wild and no public exploit code.

Affected product: HCLSoftware IntelliOps Event 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-2026-56587/ (Markdown: https://insights.sbomify.com/CVE-2026-56587/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-56587
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-56587
- OSV: https://osv.dev/vulnerability/CVE-2026-56587

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-56587/
Summaries are generated and may contain mistakes; the official description above is the record.