# CVE-2026-4096: Other in DevOps Plan

> Attackers can exploit Host Header Injection in IBM DevOps Plan to enable cache poisoning, session hijacking, or cross-site scripting attacks.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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:** 11 Jun 2026
- **Updated:** 11 Jun 2026
- **Also known as:** GHSA-p4v4-3mfq-ffjr

## What is CVE-2026-4096?

CVE-2026-4096 is a medium-severity vulnerability in IBM DevOps Plan, published on 11 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

IBM DevOps Plan 3.0.0 through 3.0.6 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking

Weakness: CWE-644 (Improper Neutralization of HTTP Headers for Scripting Syntax)

## Which versions are affected by CVE-2026-4096?

It affects 1 product.


Products: Hcltech Devops Plan.

## How do I fix CVE-2026-4096?

No fix has been published for CVE-2026-4096 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-4096 being exploited?

There is no known exploitation of CVE-2026-4096 in the wild and no public exploit code.

## Other vulnerabilities in IBM DevOps Plan

- [CVE-2023-37507](https://insights.sbomify.com/CVE-2023-37507/): An information disclosure vulnerability affects HCL DevOps Plan (medium 6.9)
- [CVE-2025-36364](https://insights.sbomify.com/CVE-2025-36364/): IBM DevOps Plan REST APIs are vulnerable to exposure of sensitive data through request query parameters. (medium 6.2)
- [CVE-2025-36363](https://insights.sbomify.com/CVE-2025-36363/): IBM DevOps Plan is vulnerable to Excessive Authentication Attempts (medium 5.9)
- [CVE-2023-37508](https://insights.sbomify.com/CVE-2023-37508/): HCL DevOps Plan is susceptible to a Cross-Site Scripting (XSS) vulnerability (low 2.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-4096 and fix it if it is affected.

What it is: CVE-2026-4096 is a medium-severity vulnerability in IBM DevOps Plan, published on 11 Jun 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-2026-4096 in the wild and no public exploit code.

Affected product: IBM DevOps Plan. 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-2026-4096/ (Markdown: https://insights.sbomify.com/CVE-2026-4096/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-4096
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4096
- OSV: https://osv.dev/vulnerability/CVE-2026-4096

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-4096/
Summaries are generated and may contain mistakes; the official description above is the record.