# CVE-2025-52639: HCL Connections is vulnerable to sensitive information disclosure

> An attacker can obtain sensitive information they are not entitled to due to improper rendering of application data in HCL Connections.

- **Severity:** Low 3.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Nov 2025
- **Updated:** 18 Nov 2025
- **Also known as:** GHSA-8vrm-72pg-2598

## What is CVE-2025-52639?

CVE-2025-52639 is a low-severity vulnerability in HCL Software Connections, published on 18 Nov 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

HCL Connections is vulnerable to a sensitive information disclosure vulnerability which could allow a user to obtain sensitive information they are not entitled to, caused by improper rendering of application data.

Weakness: CWE-201 (Insertion of Sensitive Information Into Sent Data)

## Which versions are affected by CVE-2025-52639?

It affects 1 product.


Products: Hcltech Connections.

## How do I fix CVE-2025-52639?

No fix has been published for CVE-2025-52639 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-52639 being exploited?

There is no known exploitation of CVE-2025-52639 in the wild and no public exploit code.

## Other vulnerabilities in HCL Software Connections

- [CVE-2020-4085](https://insights.sbomify.com/CVE-2020-4085/): Information disclosure in "HCL Connections" (medium 6.5)
- [CVE-2019-4209](https://insights.sbomify.com/CVE-2019-4209/): Open redirect in HCL Connections (medium 6.1)
- [CVE-2023-28018](https://insights.sbomify.com/CVE-2023-28018/): HCL Connections s vulnerable to possible denial of service for certain users (medium 5.5)
- [CVE-2020-4083](https://insights.sbomify.com/CVE-2020-4083/): Information disclosure in "HCL Connections" (medium 5.5)
- [CVE-2026-21788](https://insights.sbomify.com/CVE-2026-21788/): HCL Connections is vulnerable to cross-site scripting (XSS) (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-52639 and fix it if it is affected.

What it is: CVE-2025-52639 is a low-severity vulnerability in HCL Software Connections, published on 18 Nov 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-52639 in the wild and no public exploit code.

Affected product: HCL Software Connections. 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-2025-52639/ (Markdown: https://insights.sbomify.com/CVE-2025-52639/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-52639
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-52639
- OSV: https://osv.dev/vulnerability/CVE-2025-52639

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-52639/
Summaries are generated and may contain mistakes; the official description above is the record.