SEPTEMBER 8, 2026
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Case File

CVE-2026-54171

MEDIUM · CVSS 6.5 EPSS 0.30% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-17 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

Excon's RedirectFollower middleware prior to version 1.5.0 is vulnerable to leaking sensitive headers during HTTP redirects, potentially exposing confidential information to unintended targets. Organizations using Excon for Ruby should prioritize upgrading to version 1.5.0 to mitigate the risk of data exposure. This vulnerability is particularly relevant for developers and security teams managing web applications that rely on Excon for HTTP communications.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-54171
Severity
MEDIUM
CVSS
6.5
EPSS
0.30%

Original NVD 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.

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