VULNERABILITY INTELLIGENCE

CVE-2026-54171

CVSS score6.5 MEDIUM
EPSS probability0.43%
CISA KEVNot currently listed
Published2026-07-17
Last modified2026-07-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-201

Primary references