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 di…
Published: 2026-07-17 · CVSS: 6.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7