{"id":"CVE-2026-54171","summary":"Excon: redact additional sensitive/risky headers when following redirects","details":"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.","aliases":["GHSA-48rx-c7pg-q66r"],"modified":"2026-07-31T03:48:45.642572734Z","published":"2026-07-17T20:09:44.716Z","related":["CGA-mcpj-9cgr-9pc9"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-201"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54171.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54171.json"},{"type":"ADVISORY","url":"https://github.com/excon/excon/security/advisories/GHSA-48rx-c7pg-q66r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54171"},{"type":"FIX","url":"https://github.com/excon/excon/commit/ea89a35308a12f4b791b6c50f2cbd33f94889fa3"},{"type":"FIX","url":"https://github.com/excon/excon/pull/901"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/excon/excon","events":[{"introduced":"0"},{"fixed":"f59b27e16c7516b7f2724401a430cacc144da406"},{"fixed":"ea89a35308a12f4b791b6c50f2cbd33f94889fa3"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:excon_project:excon:*:*:*:*:*:ruby:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.5.0"}]}}],"versions":["v1.4.2","v1.4.1","v1.4.0","v1.3.2","v1.3.1","v1.3.0","v1.2.9","v1.2.8","v1.2.7","v1.2.6","v1.2.5","v1.2.4","v1.2.3","v1.2.2","v1.2.1","v1.2.0","v1.1.1","v1.1.0","v1.0.0","v0.112.0","v0.111.0","v0.110.0","v0.109.0","v0.108.0","v0.107.0","v0.106.0","v0.105.0","v0.104.0","v0.103.0","v0.102.0","v0.101.0","v0.100.0","v0.99.0","v0.98.0","v0.97.2","v0.97.1","v0.97.0","v0.96.0","v0.95.0","v0.94.0","v0.93.1","v0.93.0","v0.92.5","v0.92.4","v0.92.3","v0.92.2","v0.92.1","v0.92.0","v0.91.0","v0.90.0","v0.89.0","v0.88.0","v0.87.0","v0.86.0","v0.85.0","v0.84.0","v0.83.0","v0.82.0","v0.81.0","v0.80.1","v0.80.0","v0.79.0","v0.78.1","v0.78.0","v0.77.0","v0.76.0","v0.75.0","v0.74.0","v0.73.0","v0.72.0","v0.71.1","v0.71.0","v0.70.0","v0.69.1","v0.69.0","v0.68.0","v0.67.0","v0.66.0","v0.65.0","v0.64.0","v0.63.0","v0.62.0","v0.61.0","v0.60.0","v0.59.0","v0.58.0","v0.57.1","v0.57.0","v0.56.0","v0.55.0","v0.54.0","v0.53.0","v0.52.0","v0.50.1","v0.50.0","v0.49.0","v0.48.0","v0.47.0","v0.46.0","v0.45.4","v0.45.3","v0.45.2","v0.45.1","v0.45.0","v0.44.4","v0.44.3","v0.44.2","v0.44.1","v0.44.0","v0.43.0","v0.42.1","v0.42.0","v0.41.0","v0.40.0","v0.39.6","v0.39.5","v0.39.4","v0.39.3","v0.39.2","v0.39.1","v0.39.0","v0.38.0","v0.37.0","v0.36.0","v0.35.0","v0.34.0","v0.33.0","v0.32.1","v0.32.0","v0.31.0","v0.30.0","v0.29.0","v0.28.0","v0.27.6","v0.27.5","v0.27.4","v0.27.3","v0.27.2","v0.27.1","v0.27.0","v0.26.0","v0.25.3","v0.25.2","v0.25.1","v0.25.0","v0.24.0","v0.23.0","v0.20.1","v0.22.1","v0.22.0","v0.21.0","v0.20.0","v0.19.5","v0.19.4","v0.19.3","v0.19.2","v0.19.1","v0.19.0","v0.18.5","v0.18.4","v0.18.3","v0.18.2","v0.18.1","v0.18.0","v0.17.0","v0.16.10","v0.16.9","v0.16.8","v0.16.7","v0.16.6","v0.16.5","v0.16.4","v0.16.3","v0.16.2","v0.16.1","v0.16.0","v0.15.5","v0.15.4","v0.15.3","v0.15.2","v0.15.1","v0.15.0","v0.14.3","v0.14.2","v0.14.1","v0.14.0","v0.13.4","v0.13.3","v0.13.2","v0.13.1","v0.13.0","v0.12.0","v0.11.0","v0.10.1","v0.10.0","v0.9.6","v0.9.5","v0.9.4","v0.9.3","v0.9.2","v0.9.1","v0.9.0","v0.8.0","v0.7.12","v0.7.11","v0.7.10","v0.7.9","v0.7.8","v0.7.7","v0.7.6","v0.7.5","v0.7.4","v0.7.3","v0.7.2","v0.7.1","v0.7.0","v0.6.6","v0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.8","v0.5.7","v0.5.6","v0.5.5","v0.5.4","v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.0","v0.3.8","v0.3.7","v0.3.6","v0.3.5","v0.3.4","v0.3.3","v0.3.2","v0.3.1","v0.3.0","v0.2.8","v0.2.7","v0.2.6","v0.2.5","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.2.0","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0","v0.0.26","v0.0.25","v0.0.24","v0.0.23","v0.0.22"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54171.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"}]}