This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-67339 →

DEBIAN-CVE-2026-67339

guzzlehttp/guzzle versions before 7.14.2 fail to properly isolate Proxy-Authorization headers from origin servers in cURL handlers. Attackers can capt...

Original description

The description as published by the source.

guzzlehttp/guzzle versions before 7.14.2 fail to properly isolate Proxy-Authorization headers from origin servers in cURL handlers. Attackers can capture proxy credentials through origin server access logs when requests are redirected, bypassed, or sent through SOCKS proxies that Guzzle misclassifies as direct connections.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 guzzle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 guzzle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 guzzle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.14.2-1"}]}]

References

advisory security-tracker.debian.org