CVE-2026-123872 - Node.js is vulnerable to a client certificate authentication b

[Starburst]

CVE ID :CVE-2026-123872
Published : Nov. 11, 2026, 6:30 p.m. | 35 minutes ago
Description :A client certificate authentication bypass in Node.js TLS lets a client change the servername during TLS 1.2 renegotiation to reach endpoints it was not authorized for. On a server that applies different client-certificate policies per hostname, for example stricter admin-only client-cert auth on one host and ordinary client-cert auth on another, a client that authenticates for a permitted host can renegotiate the TLS 1.2 connection under a different servername and carry its existing authentication to the protected host, bypassing the stricter policy. This vulnerability affects Node.js 26.x, 24.x, and 22.x.
Severity: 8.1 | HIGH

More Information:
https://cvefeed.io/vuln/detail/CVE-2026-123872

[6Sense]

Thanks mate, all patched now