CVE-2026-54171

A flaw was found in Excon, a Ruby HTTP client library. The RedirectFollower middleware, responsible for handling redirects, failed to remove sensitive header information when a request was redirected to a new target. This oversight could lead to the unintended exposure of confidential data to an...

Unity Linux 20.1070e Security Update: rubygem-excon (UTSA-2026-099493)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099493 advisory. Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following...

CVE-2026-54171 affecting package rubygem-excon for versions less than 0.102.0-2

CVE-2026-54171 affecting package rubygem-excon for versions less than 0.102.0-2. A patched version of the package is available...

OESA-2026-3100 rubygem-excon security update

EXtended https CONnections. Security Fixes: Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadverten...

Excon: redact additional sensitive/risky headers when following redirects

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Linux Distros Unpatched Vulnerability : CVE-2026-54171

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following...

CVE-2026-54171

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

DEBIAN-CVE-2026-54171

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

AZL-92460 CVE-2026-54171 affecting package rubygem-excon for versions less than 0.102.0-2

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

UBUNTU-CVE-2026-54171

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

CVE-2026-54171

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

CVE-2026-54171 Excon: redact additional sensitive/risky headers when following redirects

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

CVE-2026-54171

Excon CVE-2026-54171 concerns the RedirectFollower middleware in Ruby’s Excon prior to v1.5.0, which failed to redact additional sensitive headers when following redirects. The issue could allow leakage of header data from the initial request to the redirected target. A fix is available in v1.5.0...

CVE-2026-54171

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

CVE-2026-54171 Excon: redact additional sensitive/risky headers when following redirects

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

CVE-2026-54171

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

CVE-2026-54171 Excon: redact additional sensitive/risky headers when following redirects

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

CVE-2026-54171: Insertion of Sensitive Information Into Sent Data

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

Excon does not redact additional sensitive/risky headers when following redirects

Impact The redirect follower middleware previously failed to strip a number of headers that are known to be sensitive and did not provide a way to provide a custom list of headers to strip. What kind of vulnerability is it? Who is impacted? This could cause inadvertent leakage of sensitive data f...

Incorrect Resource Transfer Between Spheres

Overview excon is an is Extended https connections. Affected versions of this package are vulnerable to Incorrect Resource Transfer Between Spheres via the RedirectFollower class. An attacker can obtain sensitive header information by exploiting improper header redaction when following redirects...