https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2018-3759.htmlhttps://patchthecve.com/cve/CVE-2018-3759.htmlWed, 17 Jun 2026 01:57:46 +0000LOW 3.7: private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is ahttps://patchthecve.com/cve/CVE-2017-0909.htmlhttps://patchthecve.com/cve/CVE-2017-0909.htmlWed, 17 Jun 2026 00:58:30 +0000CRITICAL 9.8: The private_address_check ruby gem before 0.4.1 is vulnerable to a bypass due to an incomplete blacklist of common private/local network addresses used to prevent server-side request forgery.https://patchthecve.com/cve/CVE-2017-0904.htmlhttps://patchthecve.com/cve/CVE-2017-0904.htmlWed, 17 Jun 2026 00:58:30 +0000HIGH 8.1: The private_address_check ruby gem before 0.4.0 is vulnerable to a bypass due to use of Ruby's Resolv.getaddresses method, which is OS-dependent and should not be relied upon for security measures, such as when used to blacklist private network addresses to prevent server-side request forgery.