Is CVE-2026-55729 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-55729 being exploited in the wild.

How severe is CVE-2026-55729?

Informational severity, with a CVSS score of 7.7, published 24 July 2026.

Is there a fix for CVE-2026-55729?

A patch was published on 2026-07-24: Fix available in version 5.0.8 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-55729 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-55729?

Check whether you run LOYTEC LWEB-802 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.

CVE-2026-55729: Loytec LWEB-802 credential disclosure in browser localStorage

CVE-2026-55729 · Severity: info · CVSS 7.7 · Published 2026-07-24

Loytec LWEB-802 is a building management and automation software used to control lighting, heating, and other facility systems. A security flaw allows an attacker to steal saved login credentials if they can trick a user into clicking a malicious link. If successful, the attacker could gain full administrative access to the building's management systems, potentially disrupting operations or compromising facility security.

Vendors: LOYTEC.

Quick answers

Is CVE-2026-55729 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-55729 being exploited in the wild.
How severe is CVE-2026-55729?: Informational severity, with a CVSS score of 7.7, published 24 July 2026.
Which products and versions are affected?: LOYTEC LWEB-802 before 5.0.8.
Is there a fix for CVE-2026-55729?: A patch was published on 2026-07-24: Fix available in version 5.0.8 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-55729 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-55729?: Check whether you run LOYTEC LWEB-802 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

A vulnerability classified as CWE-200 (Exposure of Sensitive Information) exists in the LWEB802 browser interface. The application stores project credentials in the browser's `localStorage` in a manner that allows them to be accessed by an unauthorized actor. An unauthenticated remote attacker can exploit this by inducing a legitimate user to visit a specially crafted link (requiring user interaction). Successful exploitation results in the disclosure of valid usernames and passwords, which can be used to authenticate to the management web application. The issue is resolved in LWEB-802 version 5.0.8.

Affected products

Loytec LWEB-802 before 5.0.8

Timeline

2026-07-24: advisory: NVD and vendor advisory published
2026-07-24: patched: Fix available in version 5.0.8

References

https://www.loytec.com/support/product-security/advisories/8526-dibt-cve-20260601-0001-exposure-of-credentials-stored-in-browser-local-storage-high

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