# CVE-2026-35143: HCL DFXAnalytics is affected by a Missing SameSite Attribute vulnerability.

> Attackers can perform CSRF attacks due to missing SameSite attributes on session cookies, potentially bypassing security controls.

- **Severity:** Low 3.0 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/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:** 16 Jul 2026
- **Updated:** 16 Jul 2026
- **Also known as:** GHSA-m9fr-x8w8-9mm4

## What is CVE-2026-35143?

CVE-2026-35143 is a low-severity vulnerability in HCL Software DFXAnalytics, published on 16 Jul 2026. 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 DFXAnalytics is affected by a Missing SameSite Attribute vulnerability. The application fails to set the "SameSite" attribute on session cookies generated during authentication, which could allow a remote attacker to execute Cross-Site Request Forgery (CSRF) attacks if additional mitigations, such as Anti-CSRF tokens, are not implemented.

Weakness: CWE-352 (Cross-Site Request Forgery), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-35143?

It affects 1 product.


Products: Hcltech Dfxanalytics.

## How do I fix CVE-2026-35143?

No fix has been published for CVE-2026-35143 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-35143 being exploited?

There is no known exploitation of CVE-2026-35143 in the wild and no public exploit code.

## Other vulnerabilities in HCL Software DFXAnalytics

- [CVE-2026-56454](https://insights.sbomify.com/CVE-2026-56454/): HCL DFXAnalytics is affected by a Deprecated Protocol vulnerability due to the use of TLS 1.0 and TLS 1.1. (medium 5.9)
- [CVE-2026-56453](https://insights.sbomify.com/CVE-2026-56453/): HCL DFXAnalytics is affected by an Account Takeover via Response Manipulation vulnerability. (medium 5.5)
- [CVE-2026-56455](https://insights.sbomify.com/CVE-2026-56455/): HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS). (medium 5.3)
- [CVE-2026-56456](https://insights.sbomify.com/CVE-2026-56456/): HCL DFXAnalytics is affected by an Internal File Path Disclosure vulnerability. (medium 5.3)
- [CVE-2025-31970](https://insights.sbomify.com/CVE-2025-31970/): HCL DFXAnalytics is affected by an Insecure Security Header configuration vulnerability (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-35143 and fix it if it is affected.

What it is: CVE-2026-35143 is a low-severity vulnerability in HCL Software DFXAnalytics, published on 16 Jul 2026. 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-2026-35143 in the wild and no public exploit code.

Affected product: HCL Software DFXAnalytics. 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-2026-35143/ (Markdown: https://insights.sbomify.com/CVE-2026-35143/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-35143
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-35143
- OSV: https://osv.dev/vulnerability/CVE-2026-35143

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-35143/
Summaries are generated and may contain mistakes; the official description above is the record.