CVE-2026-35149 HCL DFXServer is affected by an Authentication Bypass vulnerability via server response manipulation.

High 8.2 Published 16 Jul 2026 Updated 16 Jul 2026

An attacker can bypass authentication by manipulating server responses to gain unauthorized access to HCL DFXServer.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-35149?

CVE-2026-35149 is a high-severity authentication bypass vulnerability in HCL Software DFXServer, published on 16 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

HCL DFXServer is affected by an Authentication Bypass vulnerability via server response manipulation. An unauthorized user without valid credentials can exploit this flaw by intercepting and altering the server's authentication responses, allowing them to gain unauthorized access to the application without verification.

Weakness: CWE-294

Which versions are affected by CVE-2026-35149?

It affects 1 product.

Products include Hcltech Dfx Server.

How do I fix CVE-2026-35149?

No fix has been published for CVE-2026-35149 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-35149 being exploited?

There is no known exploitation of CVE-2026-35149 in the wild and no public exploit code.

Sources

Also known as GHSA-8539-9p7j-q3gf.