CVE-2026-44726
Deno's TLS retry copies stale upgrade hook, risking plaintext traffic
Einstufung nach Quelle
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD, Julia. Niedriger laut GHSA (hoch).
Beschreibung
Deno is a JavaScript, TypeScript, and WebAssembly runtime. From 2.0.0 until 2.7.8, a flaw in Deno's Node.js tls compatibility layer could cause a TLS client to transmit application data in plaintext after a connection retry. When `autoSelectFamily was enabled and the first address-family attempt failed, the socket reinitialization path reused a stale TLS upgrade hook that was bound to the original, failed handle. As a result, the replacement TCP connection was never upgraded to TLS, and any data the application wrote before the secureConnect event travelled over the network unencrypted. A network attacker positioned to cause the initial connection attempt to fail (for example, by dropping IPv6 traffic on a dual-stack host) could deterministically trigger the fallback path and observe or tamper with traffic that the application believed was TLS-protected. This vulnerability is fixed in 2.7.8.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| julia::Julia Ecosystem Security Advisories | Deno_jll | 2.8.1+0 |
| cargo::GitHub Security Advisory Rust | deno | 2.7.8 |
| rapidfort alpine 3.20 | deno | kein Fix angegeben |
| rapidfort alpine 3.21 | deno | kein Fix angegeben |
| rapidfort alpine 3.22 | deno | kein Fix angegeben |
| rapidfort alpine 3.23 | deno | kein Fix angegeben |
| rapidfort alpine 3.24 | deno | kein Fix angegeben |