# CVE-2025-52621: HCL BigFix SaaS Authentication Service is vulnerable to cache poisoning

> Attackers can poison the cache of HCL BigFix SaaS by exploiting unvalidated Origin header reflection, potentially bypassing security controls or exposing data.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/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:** 15 Aug 2025
- **Updated:** 18 Aug 2025
- **Also known as:** GHSA-r9j3-884r-cxhp

## What is CVE-2025-52621?

CVE-2025-52621 is a medium-severity vulnerability in HCL Software BigFix SaaS Remediate, published on 15 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

HCL BigFix SaaS Authentication Service is vulnerable to cache poisoning.   The BigFix SaaS's HTTP responses were observed to include the Origin header. Its presence alongside an unvalidated reflection of the Origin header value introduces a potential for cache poisoning.

Weakness: CWE-346 (Origin Validation Error)

## Which versions are affected by CVE-2025-52621?

It affects 1 product.


Products: Hcltech Bigfix Saas.

## How do I fix CVE-2025-52621?

No fix has been published for CVE-2025-52621 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-52621 being exploited?

There is no known exploitation of CVE-2025-52621 in the wild and no public exploit code.

## Other vulnerabilities in HCL Software BigFix SaaS Remediate

- [CVE-2025-52619](https://insights.sbomify.com/CVE-2025-52619/): HCL BigFix SaaS Authentication Service is affected by a sensitive information disclosure (medium 5.3)
- [CVE-2025-52618](https://insights.sbomify.com/CVE-2025-52618/): HCL BigFix SaaS Authentication Service is affected by a SQL injection vulnerability (medium 4.3)
- [CVE-2025-52620](https://insights.sbomify.com/CVE-2025-52620/): HCL BigFix SaaS Authentication Service is affected by a Cross-Site Scripting (XSS) vulnerability (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-52621 and fix it if it is affected.

What it is: CVE-2025-52621 is a medium-severity vulnerability in HCL Software BigFix SaaS Remediate, published on 15 Aug 2025. 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-2025-52621 in the wild and no public exploit code.

Affected product: HCL Software BigFix SaaS Remediate. 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-2025-52621/ (Markdown: https://insights.sbomify.com/CVE-2025-52621/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-52621
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-52621
- OSV: https://osv.dev/vulnerability/CVE-2025-52621

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-52621/
Summaries are generated and may contain mistakes; the official description above is the record.