undici vulnerable to TLS certificate validation bypass via dropped requestTls in SOCKS5 ProxyAgent

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Improper Certificate Validation

Overview org.webjars.npm:undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Improper Certificate Validation in the ProxyAgent when configured with a SOCKS5 proxy URI, which causes the requestTls option to be silently dropped. An...

UBUNTU-CVE-2026-9697

Impact: undici's ProxyAgent silently drops the requestTls option when configured with a SOCKS5 proxy URI socks5:// or socks://. The target HTTPS connection through the SOCKS5 tunnel falls back to Node's default trust store, ignoring user-configured ca, cert, key, rejectUnauthorized, and servernam...

CVE-2026-9697

undici’s ProxyAgent drops the requestTls option when used with a SOCKS5 proxy (socks5:// or socks://), causing the HTTPS connection to rely on Node’s default trust store and ignore user-provided ca, cert, key, rejectUnauthorized, and servername. This allows any cert signed by a publicly trusted C...

CVE-2026-9697

Impact: undici's ProxyAgent silently drops the requestTls option when configured with a SOCKS5 proxy URI socks5:// or socks://. The target HTTPS connection through the SOCKS5 tunnel falls back to Node's default trust store, ignoring user-configured ca, cert, key, rejectUnauthorized, and servernam...

PT-2026-50517

Name of the Vulnerable Software and Affected Versions undici versions 7.23.0 through 7.27.x undici versions 8.0.0 through 8.4.x Description The ProxyAgent in undici silently drops the requestTls option when configured with a SOCKS5 proxy URI socks5:// or socks://. This causes the target HTTPS...