# CVE-2025-31958: HCL BigFix Service Management (SM) is susceptible to HTTP Request Smuggling

> Attackers can exploit HTTP request smuggling to bypass security controls and hijack requests in HCL BigFix Service Management.

- **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 Apr 2026
- **Updated:** 21 Apr 2026
- **Also known as:** GHSA-f8cq-gr3x-x7xf

## What is CVE-2025-31958?

CVE-2025-31958 is a low-severity vulnerability in HCLSoftware BigFix Service Management (SM), published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

HCL BigFix Service Management is susceptible to HTTP Request Smuggling.  HTTP request smuggling vulnerabilities arise when websites route HTTP requests through web servers with inconsistent HTTP parsing. HTTP Smuggling exploits inconsistencies in request parsing between front-end and back-end servers, allowing attackers to bypass security controls and perform attacks like cache poisoning or request hijacking.

Weakness: CWE-444 (Inconsistent Interpretation of HTTP Requests)

## Which versions are affected by CVE-2025-31958?

It affects 1 product.


Products: Hcltech Bigfix Service Management.

## How do I fix CVE-2025-31958?

No fix has been published for CVE-2025-31958 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-31958 being exploited?

There is no known exploitation of CVE-2025-31958 in the wild and no public exploit code.

## Other vulnerabilities in HCLSoftware BigFix Service Management (SM)

- [CVE-2026-67100](https://insights.sbomify.com/CVE-2026-67100/): HCL BigFix Service Management is affected by multiple security vulnerabilities. (critical 9.8)
- [CVE-2026-67101](https://insights.sbomify.com/CVE-2026-67101/): HCL BigFix Service Management is affected by multiple security vulnerabilities. (critical 9.3)
- [CVE-2024-30151](https://insights.sbomify.com/CVE-2024-30151/): HCL BigFix Service Management (SM) is susceptible to Broken Access Control Vulnerability (high 8.3)
- [CVE-2026-67102](https://insights.sbomify.com/CVE-2026-67102/): HCL BigFix Service Management is affected by multiple security vulnerabilities. (high 8.1)
- [CVE-2026-67103](https://insights.sbomify.com/CVE-2026-67103/): HCL BigFix Service Management is affected by multiple security vulnerabilities. (high 7.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-31958 and fix it if it is affected.

What it is: CVE-2025-31958 is a low-severity vulnerability in HCLSoftware BigFix Service Management (SM), published on 21 Apr 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-2025-31958 in the wild and no public exploit code.

Affected product: HCLSoftware BigFix Service Management (SM). 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-2025-31958/ (Markdown: https://insights.sbomify.com/CVE-2025-31958/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-31958
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-31958
- OSV: https://osv.dev/vulnerability/CVE-2025-31958

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-31958/
Summaries are generated and may contain mistakes; the official description above is the record.