Vulnerability Details 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 request includes header information that is not intended for the new target. This issue is fixed in version 1.5.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 24.1%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2026-54171
-
cpe:2.3:a:excon_project:excon:0.0.22
-
cpe:2.3:a:excon_project:excon:0.0.23
-
cpe:2.3:a:excon_project:excon:0.0.24
-
cpe:2.3:a:excon_project:excon:0.0.25
-
cpe:2.3:a:excon_project:excon:0.0.26
-
cpe:2.3:a:excon_project:excon:0.1.0
-
cpe:2.3:a:excon_project:excon:0.1.1
-
cpe:2.3:a:excon_project:excon:0.1.2
-
cpe:2.3:a:excon_project:excon:0.1.3
-
cpe:2.3:a:excon_project:excon:0.1.4
-
cpe:2.3:a:excon_project:excon:0.10.0
-
cpe:2.3:a:excon_project:excon:0.10.1
-
cpe:2.3:a:excon_project:excon:0.100.0
-
cpe:2.3:a:excon_project:excon:0.101.0
-
cpe:2.3:a:excon_project:excon:0.102.0
-
cpe:2.3:a:excon_project:excon:0.103.0
-
cpe:2.3:a:excon_project:excon:0.104.0
-
cpe:2.3:a:excon_project:excon:0.105.0
-
cpe:2.3:a:excon_project:excon:0.106.0
-
cpe:2.3:a:excon_project:excon:0.107.0
-
cpe:2.3:a:excon_project:excon:0.108.0
-
cpe:2.3:a:excon_project:excon:0.109.0
-
cpe:2.3:a:excon_project:excon:0.11.0
-
cpe:2.3:a:excon_project:excon:0.110.0
-
cpe:2.3:a:excon_project:excon:0.111.0
-
cpe:2.3:a:excon_project:excon:0.112.0
-
cpe:2.3:a:excon_project:excon:0.12.0
-
cpe:2.3:a:excon_project:excon:0.13.0
-
cpe:2.3:a:excon_project:excon:0.13.1
-
cpe:2.3:a:excon_project:excon:0.13.2
-
cpe:2.3:a:excon_project:excon:0.13.3
-
cpe:2.3:a:excon_project:excon:0.13.4
-
cpe:2.3:a:excon_project:excon:0.14.0
-
cpe:2.3:a:excon_project:excon:0.14.1
-
cpe:2.3:a:excon_project:excon:0.14.2
-
cpe:2.3:a:excon_project:excon:0.14.3
-
cpe:2.3:a:excon_project:excon:0.15.0
-
cpe:2.3:a:excon_project:excon:0.15.1
-
cpe:2.3:a:excon_project:excon:0.15.2
-
cpe:2.3:a:excon_project:excon:0.15.3
-
cpe:2.3:a:excon_project:excon:0.15.4
-
cpe:2.3:a:excon_project:excon:0.15.5
-
cpe:2.3:a:excon_project:excon:0.16.0
-
cpe:2.3:a:excon_project:excon:0.16.1
-
cpe:2.3:a:excon_project:excon:0.16.10
-
cpe:2.3:a:excon_project:excon:0.16.2
-
cpe:2.3:a:excon_project:excon:0.16.3
-
cpe:2.3:a:excon_project:excon:0.16.4
-
cpe:2.3:a:excon_project:excon:0.16.5
-
cpe:2.3:a:excon_project:excon:0.16.6
-
cpe:2.3:a:excon_project:excon:0.16.7
-
cpe:2.3:a:excon_project:excon:0.16.8
-
cpe:2.3:a:excon_project:excon:0.16.9
-
cpe:2.3:a:excon_project:excon:0.17.0
-
cpe:2.3:a:excon_project:excon:0.18.0
-
cpe:2.3:a:excon_project:excon:0.18.1
-
cpe:2.3:a:excon_project:excon:0.18.2
-
cpe:2.3:a:excon_project:excon:0.18.3
-
cpe:2.3:a:excon_project:excon:0.18.4
-
cpe:2.3:a:excon_project:excon:0.18.5
-
cpe:2.3:a:excon_project:excon:0.19.0
-
cpe:2.3:a:excon_project:excon:0.19.1
-
cpe:2.3:a:excon_project:excon:0.19.2
-
cpe:2.3:a:excon_project:excon:0.19.3
-
cpe:2.3:a:excon_project:excon:0.19.4
-
cpe:2.3:a:excon_project:excon:0.19.5
-
cpe:2.3:a:excon_project:excon:0.2.0
-
cpe:2.3:a:excon_project:excon:0.2.1
-
cpe:2.3:a:excon_project:excon:0.2.2
-
cpe:2.3:a:excon_project:excon:0.2.3
-
cpe:2.3:a:excon_project:excon:0.2.4
-
cpe:2.3:a:excon_project:excon:0.2.5
-
cpe:2.3:a:excon_project:excon:0.2.6
-
cpe:2.3:a:excon_project:excon:0.2.7
-
cpe:2.3:a:excon_project:excon:0.2.8
-
cpe:2.3:a:excon_project:excon:0.20.0
-
cpe:2.3:a:excon_project:excon:0.20.1
-
cpe:2.3:a:excon_project:excon:0.21.0
-
cpe:2.3:a:excon_project:excon:0.22.0
-
cpe:2.3:a:excon_project:excon:0.22.1
-
cpe:2.3:a:excon_project:excon:0.23.0
-
cpe:2.3:a:excon_project:excon:0.24.0
-
cpe:2.3:a:excon_project:excon:0.25.0
-
cpe:2.3:a:excon_project:excon:0.25.1
-
cpe:2.3:a:excon_project:excon:0.25.2
-
cpe:2.3:a:excon_project:excon:0.25.3
-
cpe:2.3:a:excon_project:excon:0.26.0
-
cpe:2.3:a:excon_project:excon:0.27.0
-
cpe:2.3:a:excon_project:excon:0.27.1
-
cpe:2.3:a:excon_project:excon:0.27.2
-
cpe:2.3:a:excon_project:excon:0.27.3
-
cpe:2.3:a:excon_project:excon:0.27.4
-
cpe:2.3:a:excon_project:excon:0.27.5
-
cpe:2.3:a:excon_project:excon:0.27.6
-
cpe:2.3:a:excon_project:excon:0.28.0
-
cpe:2.3:a:excon_project:excon:0.29.0
-
cpe:2.3:a:excon_project:excon:0.3.0
-
cpe:2.3:a:excon_project:excon:0.3.1
-
cpe:2.3:a:excon_project:excon:0.3.2
-
cpe:2.3:a:excon_project:excon:0.3.3
-
cpe:2.3:a:excon_project:excon:0.3.4
-
cpe:2.3:a:excon_project:excon:0.3.5
-
cpe:2.3:a:excon_project:excon:0.3.6
-
cpe:2.3:a:excon_project:excon:0.3.7
-
cpe:2.3:a:excon_project:excon:0.3.8
-
cpe:2.3:a:excon_project:excon:0.30.0
-
cpe:2.3:a:excon_project:excon:0.31.0
-
cpe:2.3:a:excon_project:excon:0.32.0
-
cpe:2.3:a:excon_project:excon:0.32.1
-
cpe:2.3:a:excon_project:excon:0.33.0
-
cpe:2.3:a:excon_project:excon:0.34.0
-
cpe:2.3:a:excon_project:excon:0.35.0
-
cpe:2.3:a:excon_project:excon:0.36.0
-
cpe:2.3:a:excon_project:excon:0.37.0
-
cpe:2.3:a:excon_project:excon:0.38.0
-
cpe:2.3:a:excon_project:excon:0.39.0
-
cpe:2.3:a:excon_project:excon:0.39.1
-
cpe:2.3:a:excon_project:excon:0.39.2
-
cpe:2.3:a:excon_project:excon:0.39.3
-
cpe:2.3:a:excon_project:excon:0.39.4
-
cpe:2.3:a:excon_project:excon:0.39.5
-
cpe:2.3:a:excon_project:excon:0.39.6
-
cpe:2.3:a:excon_project:excon:0.4.0
-
cpe:2.3:a:excon_project:excon:0.40.0
-
cpe:2.3:a:excon_project:excon:0.41.0
-
cpe:2.3:a:excon_project:excon:0.42.0
-
cpe:2.3:a:excon_project:excon:0.42.1
-
cpe:2.3:a:excon_project:excon:0.43.0
-
cpe:2.3:a:excon_project:excon:0.44.0
-
cpe:2.3:a:excon_project:excon:0.44.1
-
cpe:2.3:a:excon_project:excon:0.44.2
-
cpe:2.3:a:excon_project:excon:0.44.3
-
cpe:2.3:a:excon_project:excon:0.44.4
-
cpe:2.3:a:excon_project:excon:0.45.0
-
cpe:2.3:a:excon_project:excon:0.45.1
-
cpe:2.3:a:excon_project:excon:0.45.2
-
cpe:2.3:a:excon_project:excon:0.45.3
-
cpe:2.3:a:excon_project:excon:0.45.4
-
cpe:2.3:a:excon_project:excon:0.46.0
-
cpe:2.3:a:excon_project:excon:0.47.0
-
cpe:2.3:a:excon_project:excon:0.48.0
-
cpe:2.3:a:excon_project:excon:0.49.0
-
cpe:2.3:a:excon_project:excon:0.5.0
-
cpe:2.3:a:excon_project:excon:0.5.1
-
cpe:2.3:a:excon_project:excon:0.5.2
-
cpe:2.3:a:excon_project:excon:0.5.3
-
cpe:2.3:a:excon_project:excon:0.5.4
-
cpe:2.3:a:excon_project:excon:0.5.5
-
cpe:2.3:a:excon_project:excon:0.5.6
-
cpe:2.3:a:excon_project:excon:0.5.7
-
cpe:2.3:a:excon_project:excon:0.5.8
-
cpe:2.3:a:excon_project:excon:0.50.0
-
cpe:2.3:a:excon_project:excon:0.50.1
-
cpe:2.3:a:excon_project:excon:0.51.0
-
cpe:2.3:a:excon_project:excon:0.52.0
-
cpe:2.3:a:excon_project:excon:0.53.0
-
cpe:2.3:a:excon_project:excon:0.54.0
-
cpe:2.3:a:excon_project:excon:0.55.0
-
cpe:2.3:a:excon_project:excon:0.56.0
-
cpe:2.3:a:excon_project:excon:0.57.0
-
cpe:2.3:a:excon_project:excon:0.57.1
-
cpe:2.3:a:excon_project:excon:0.58.0
-
cpe:2.3:a:excon_project:excon:0.59.0
-
cpe:2.3:a:excon_project:excon:0.6.0
-
cpe:2.3:a:excon_project:excon:0.6.1
-
cpe:2.3:a:excon_project:excon:0.6.2
-
cpe:2.3:a:excon_project:excon:0.6.3
-
cpe:2.3:a:excon_project:excon:0.6.4
-
cpe:2.3:a:excon_project:excon:0.6.5
-
cpe:2.3:a:excon_project:excon:0.6.6
-
cpe:2.3:a:excon_project:excon:0.60.0
-
cpe:2.3:a:excon_project:excon:0.61.0
-
cpe:2.3:a:excon_project:excon:0.62.0
-
cpe:2.3:a:excon_project:excon:0.63.0
-
cpe:2.3:a:excon_project:excon:0.7.0
-
cpe:2.3:a:excon_project:excon:0.7.1
-
cpe:2.3:a:excon_project:excon:0.7.10
-
cpe:2.3:a:excon_project:excon:0.7.11
-
cpe:2.3:a:excon_project:excon:0.7.12
-
cpe:2.3:a:excon_project:excon:0.7.2
-
cpe:2.3:a:excon_project:excon:0.7.3
-
cpe:2.3:a:excon_project:excon:0.7.4
-
cpe:2.3:a:excon_project:excon:0.7.5
-
cpe:2.3:a:excon_project:excon:0.7.6
-
cpe:2.3:a:excon_project:excon:0.7.7
-
cpe:2.3:a:excon_project:excon:0.7.8
-
cpe:2.3:a:excon_project:excon:0.7.9
-
cpe:2.3:a:excon_project:excon:0.71.1
-
cpe:2.3:a:excon_project:excon:0.72.0
-
cpe:2.3:a:excon_project:excon:0.73.0
-
cpe:2.3:a:excon_project:excon:0.74.0
-
cpe:2.3:a:excon_project:excon:0.75.0
-
cpe:2.3:a:excon_project:excon:0.76.0
-
cpe:2.3:a:excon_project:excon:0.77.0
-
cpe:2.3:a:excon_project:excon:0.78.0
-
cpe:2.3:a:excon_project:excon:0.78.1
-
cpe:2.3:a:excon_project:excon:0.79.0
-
cpe:2.3:a:excon_project:excon:0.8.0
-
cpe:2.3:a:excon_project:excon:0.80.0
-
cpe:2.3:a:excon_project:excon:0.80.1
-
cpe:2.3:a:excon_project:excon:0.81.0
-
cpe:2.3:a:excon_project:excon:0.82.0
-
cpe:2.3:a:excon_project:excon:0.83.0
-
cpe:2.3:a:excon_project:excon:0.84.0
-
cpe:2.3:a:excon_project:excon:0.85.0
-
cpe:2.3:a:excon_project:excon:0.86.0
-
cpe:2.3:a:excon_project:excon:0.87.0
-
cpe:2.3:a:excon_project:excon:0.88.0
-
cpe:2.3:a:excon_project:excon:0.89.0
-
cpe:2.3:a:excon_project:excon:0.9.0
-
cpe:2.3:a:excon_project:excon:0.9.1
-
cpe:2.3:a:excon_project:excon:0.9.2
-
cpe:2.3:a:excon_project:excon:0.9.3
-
cpe:2.3:a:excon_project:excon:0.9.4
-
cpe:2.3:a:excon_project:excon:0.9.5
-
cpe:2.3:a:excon_project:excon:0.9.6
-
cpe:2.3:a:excon_project:excon:0.90.0
-
cpe:2.3:a:excon_project:excon:0.91.0
-
cpe:2.3:a:excon_project:excon:0.92.0
-
cpe:2.3:a:excon_project:excon:0.92.1
-
cpe:2.3:a:excon_project:excon:0.92.2
-
cpe:2.3:a:excon_project:excon:0.92.3
-
cpe:2.3:a:excon_project:excon:0.92.4
-
cpe:2.3:a:excon_project:excon:0.92.5
-
cpe:2.3:a:excon_project:excon:0.93.0
-
cpe:2.3:a:excon_project:excon:0.93.1
-
cpe:2.3:a:excon_project:excon:0.94.0
-
cpe:2.3:a:excon_project:excon:0.95.0
-
cpe:2.3:a:excon_project:excon:0.96.0
-
cpe:2.3:a:excon_project:excon:0.97.0
-
cpe:2.3:a:excon_project:excon:0.97.1
-
cpe:2.3:a:excon_project:excon:0.97.2
-
cpe:2.3:a:excon_project:excon:0.98.0
-
cpe:2.3:a:excon_project:excon:0.99.0
-
cpe:2.3:a:excon_project:excon:1.0.0
-
cpe:2.3:a:excon_project:excon:1.1.0
-
cpe:2.3:a:excon_project:excon:1.1.1
-
cpe:2.3:a:excon_project:excon:1.2.0
-
cpe:2.3:a:excon_project:excon:1.2.1
-
cpe:2.3:a:excon_project:excon:1.2.2
-
cpe:2.3:a:excon_project:excon:1.2.3
-
cpe:2.3:a:excon_project:excon:1.2.4
-
cpe:2.3:a:excon_project:excon:1.2.5
-
cpe:2.3:a:excon_project:excon:1.2.6
-
cpe:2.3:a:excon_project:excon:1.2.7
-
cpe:2.3:a:excon_project:excon:1.2.8
-
cpe:2.3:a:excon_project:excon:1.2.9
-
cpe:2.3:a:excon_project:excon:1.3.0
-
cpe:2.3:a:excon_project:excon:1.3.1
-
cpe:2.3:a:excon_project:excon:1.3.2
-
cpe:2.3:a:excon_project:excon:1.4.0
-
cpe:2.3:a:excon_project:excon:1.4.1
-
cpe:2.3:a:excon_project:excon:1.4.2