# CVE-2023-50963: IBM Storage Defender HTTP HOST header injection

> Attackers can inject HTTP HOST headers to enable cache poisoning, session hijacking, or XSS in IBM Storage Defender Data Protect.

- **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:** 19 Jan 2024
- **Updated:** 17 Jun 2025
- **Also known as:** GHSA-vwm9-w486-j9vq

## What is CVE-2023-50963?

CVE-2023-50963 is a medium-severity vulnerability in IBM Storage Defender - Data Protect, published on 19 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

IBM Storage Defender - Data Protect 1.0.0 through 1.4.1 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.  IBM X-Force ID:  276101.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2023-50963?

It affects 1 product.


Products: Ibm Storage Defender Data Protect.

## How do I fix CVE-2023-50963?

No fix has been published for CVE-2023-50963 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-50963 being exploited?

There is no known exploitation of CVE-2023-50963 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-50963 and fix it if it is affected.

What it is: CVE-2023-50963 is a medium-severity vulnerability in IBM Storage Defender - Data Protect, published on 19 Jan 2024. 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-2023-50963 in the wild and no public exploit code.

Affected product: IBM Storage Defender - Data Protect. 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-2023-50963/ (Markdown: https://insights.sbomify.com/CVE-2023-50963/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-50963
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-50963
- OSV: https://osv.dev/vulnerability/CVE-2023-50963

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-50963/
Summaries are generated and may contain mistakes; the official description above is the record.