CVE-2026-59326 HTTP Proxy Credentials Logged in Plaintext by the Spring Boot Language Server

Low 3.3 Published 30 Jul 2026 Updated 30 Jul 2026

The Spring Boot language server logs proxy credentials in plaintext, potentially exposing sensitive authentication data to local users or bug reports.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-59326?

CVE-2026-59326 is a low-severity vulnerability in Spring Tools for Eclipse, published on 30 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Spring Boot language server logs the raw value of the https_proxy/HTTPS_PROXY/http_proxy/HTTP_PROXY environment variable at INFO level whenever it creates an outbound HTTP client and no explicit http.proxy workspace setting is configured. Corporate proxy URLs frequently embed Basic-auth credentials in the form http://user:pass@proxy:8080, and the language server writes this value to its log file without any redaction. Since language server log files are often attached to bug reports or are readable by other local users/processes, this can result in disclosure of proxy credentials. Affected Spring Products and Versions: Spring Tools for Eclipse: 5.2.0 and earlier Spring Tools for VSCode / Cursor / Theia: 2.2.0 and earlier

Weakness: CWE-532

Which versions are affected by CVE-2026-59326?

It affects 1 product.

Products include Broadcom Spring Tools.

How do I fix CVE-2026-59326?

No fix has been published for CVE-2026-59326 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-59326 being exploited?

There is no known exploitation of CVE-2026-59326 in the wild and no public exploit code.

Sources

Also known as GHSA-9j65-vr9q-w452.