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VULNERABILITIES

CVE-2026-54171 Details

Description

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 request includes header information that is not intended for the new target. This issue is fixed in version 1.5.0.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/excon/excon/commit/ea89a35308a12f4b791b6c50f2cbd33f94889fa3 [email protected]Patch
https://github.com/excon/excon/pull/901 [email protected]Issue TrackingPatch
https://github.com/excon/excon/security/advisories/GHSA-48rx-c7pg-q66r [email protected]PatchVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-201Insertion of Sensitive Information Into Sent Data[email protected]

Affected Products

ProductVersions
excon project excon
< 1.5.0

CPE

  • cpe:2.3:a:excon_project:excon:*:*:*:*:*:ruby:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-54171
NVD Published Date:
Jul 17, 2026
NVD Last Modified:
Jul 29, 2026
Source:
[email protected]
CVE-2026-54171 Details - Not Deferred