undici vulnerable to Denial of Service via TLS 1.2 certificate-changing renegotiation

影響: npm:undici >= 4.2.1, < 6.29.1 → 6.29.1, npm:undici >= 7.0.0, < 7.30.1 → 7.30.1, npm:undici >= 8.0.0, < 8.12.2 → 8.12.2

undici crashes the client process when a TLS 1.2 server renegotiates after the connection is established and presents a different, CA-trusted certificate whose hostname does not match the requested host. Node.js re-runs hostname verification on the renegotiated handshake and destroys the socket with ERR_TLS_CERT_ALTNAME_INVALID. undici's established socket error handler asserted that this error code could never occur, so the peer-controlled error became an uncaught AssertionError that terminate…

在 GitHub Advisory Database 阅读

2026/10/28 04:02，GitHub Advisory Database 发布了“undici vulnerable to Denial of Service via TLS 1.2 certificate-changing renegotiation”（类型：漏洞公告）。严重程度为“高危”（high）。相关技术：JavaScript / Node.js。CVE：CVE-2026-87018。