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[ CVE-2026-59180 · Published 10 Jul 2026 ]

Apprise forwards configured auth headers across cross-origin HTTP redirects

CVSS 3.1 EPSS <1%Fix available

[ Why it matters ]Priority signals

  • Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

Apprise is an open source library which allows you to send a notification to almost all of the most popular notification services available. Prior to 1.11.0, Apprise HTTP-based notification plugins and HTTP attachment and config loaders in apprise/attachment/http.py and apprise/config/http.py follow HTTP redirects by default and resend user-configured auth headers and query parameters on the redirected request, allowing a compromised trusted destination or on-path attacker to receive secrets such as Authorization headers, bearer tokens, custom headers, and service keys. This issue is fixed in version 1.11.0.

[ Fixes ]Fixes and patches

  • apprise 1.11.0Fixed version · GitHub Advisories · pip package apprise: upgrade to 1.11.0 or later (affected <= 1.10.0)

[ Packages ]Affected open-source packages

[ References ]References