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.
Affected products
excon_project: excon
References3
- github.com/excon/excon/security/advisories/GHSA-48rx-c7pg-q66r PatchVendor Advisory
- github.com/excon/excon/commit/ea89a35308a12f4b791b6c50f2cbd33f9… Patch
- github.com/excon/excon/pull/901 Issue TrackingPatch
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 0% percentile: 38 · as of 14 November 2026
- CWE
- CWE-201
Could this be exploited in your environment?
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