# CVE-2026-35147: HCL DFXServer broken authentication via direct API access

Source: https://junglewise.ai/threats/cve-2026-35147-hcl-dfxserver-broken-authentication-via-direct-api-access  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-16. Updated: 2026-07-16  
License: CC BY 4.0 with a link back

CVE-2026-35147 · Severity: high · CVSS 8.2 · Published 2026-07-16

HCL DFXServer is vulnerable to a security flaw that allows unauthorized individuals to access its internal programming interfaces without a password. This could allow an attacker to view sensitive information or perform unauthorized actions within the system, potentially compromising business data and operational integrity. The issue affects all versions of the software up to and including version 2.5.

Technologies: [HCL Software DFXServer](https://junglewise.ai/threats/technologies/dfxserver). Vendors: [HCL Software](https://junglewise.ai/threats/vendors/hcl-software).

## Quick answers

**Is CVE-2026-35147 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-35147 being exploited in the wild.

**How severe is CVE-2026-35147?** High severity, with a CVSS score of 8.2, published 16 July 2026.

**Which products and versions are affected?** HCL Software DFXServer 2.5 and below.

**Is there a fix for CVE-2026-35147?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-35147 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-35147?** Check whether you run HCL Software DFXServer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

HCL DFXServer (versions 2.5 and below) contains a broken authentication vulnerability (CWE-639) within its API implementation. The application fails to properly validate the authentication status of users when they attempt to access specific API endpoints directly. A remote, unauthenticated attacker can exploit this by sending crafted network requests to these endpoints, bypassing security controls to interact with the API. This can lead to unauthorized data retrieval (High Confidentiality impact) and limited unauthorized modifications (Low Integrity impact). The vulnerability is exploitable over the network without user interaction.

## Affected products

- HCL Software DFXServer 2.5 and below

## Timeline

- 2026-07-16: disclosed
- 2026-07-16: advisory

## References

- [https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131782](https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131782)

## Related threats

- [HCL DFMPro and DFX installers privilege escalation via insecure file permissions](https://junglewise.ai/threats/cve-2025-59866-hcl-dfmpro-and-dfx-installers-privilege-escalation-via-insecure)
- [HCL DFXServer authentication bypass via response manipulation](https://junglewise.ai/threats/cve-2026-35149-hcl-dfxserver-authentication-bypass-via-response-manipulation)
- [HCL DFXServer missing access control in API endpoints](https://junglewise.ai/threats/cve-2026-35148-hcl-dfxserver-missing-access-control-in-api-endpoints)
- [HCL DFXServer unencrypted communication via HTTP](https://junglewise.ai/threats/cve-2026-35146-hcl-dfxserver-unencrypted-communication-via-http)