CVE-2026-105221

HIGHCVSS 7.4

The gist RubyGem before 6.1.0 contains an improper certificate validation vulnerability that allows on-path attackers to intercept HTTPS traffic because http_connection in lib/gist.rb sets VERIFY_NONE. Attackers can present any certificate to read or modify GitHub API traffic, stealing OAuth tokens and login credentials to read and modify the victim's gists.

Published 2026-10-04 · last modified 2026-10-04

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.