CVE-2021-28918: Improper Input Validation
(updated )
Improper input validation of octal strings in netmask npm allows unauthenticated remote attackers to perform indeterminate SSRF, RFI, and LFI attacks on many of the dependent packages. A remote unauthenticated attacker can bypass packages relying on netmask to filter IPs and reach critical VPN or LAN hosts.
References
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