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Accepted: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Format: 1.8 Date: Tue, 22 Sep 2026 19:12:18 +0200 Source: nodejs Architecture: source Version: 20.19.2+dfsg-1+deb13u3 Distribution: trixie-security Urgency: medium Maintainer: Debian Javascript Maintainers <[email protected]> Changed-By: Bastien Roucariès <[email protected]> Changes: nodejs (20.19.2+dfsg-1+deb13u3) trixie-security; urgency=medium . * Team upload * Fix CVE-2026-48617: A flaw in Node.js Permission Model enforcement allows Bypass via `process.report.writeReport()` Path Misvalidation. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. * Fix CVE-2026-48618: A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth authentication bypass due to resolver and verifier hostname normalization mismat. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. * Fix CVE-2026-48619: A malicious HTTP/2 server can send repeated ORIGIN frames with unique origins, causing unbounded growth of the client-side originSet for the lifetime of the session. Cap the set at 128 entries; once full, new origins from ORIGIN frames are silently dropped. * Fix CVE-2026-48928: case-sensitive SNI context matching The regex constructed by server.addContext() lacked the case-insensitive flag, causing uppercase or mixed-case SNI hostnames from ClientHello to miss their intended context and fall back to the default context. This violates RFC 6066 Section 3, which states that DNS hostnames are case-insensitive. In mTLS configurations with per-tenant contexts, this allowed bypassing client certificate authorization by simply uppercasing the SNI hostname. * Fix CVE-2026-48930: A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings. * Fix CVE-2026-48931: HTTP Agent can cause a client to accept as valid a response that is send before the client has sent the request. * Fix CVE-2026-48933: A flaw in Node.js WebCrypto implementation can crash the process if the input of `subtle.encrypt()` is a multiple of 2GiB. * Fix CVE-2026-48934: A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation. * Fix CVE-2026-48935: A flaw in Node.js Permission API can cause a file metadata to be modified even on a path that was set as read-only with e.g. --allow-fs-read. * Fix CVE-2026-48937: A flaw in Node.js HTTP/2 server API can cause servers to keep accepting data even after sending a `GOAWAY` frame. * Fix CVE-2026-56846 A flaw in Node.js HTTP/2 handling can cause HTTP/2 retained header blocks evade maxSessionMemory and enable remote memory exhaustion. * Fix CVE-2026-56847: A flaw in Node.js Permission Model enforcement allows trace_events.createTracing().enable() Writes Trace Logs Outside --allow-fs-write. * Fix CVE-2026-56848: A flaw in Node.js HTTP/2 handling allows `nghttp2_session_mem_send()` to be called re-entrantly while `nghttp2_session_mem_recv()` is executing, resulting in a heap-use-after-free. * Fix CVE-2026-56850: A flaw in Node.js HTTPS Agent connection reuse can cause PFX object-array key collisions, allowing mutual TLS (mTLS) client identities to be reused across requests configured with different client certificates. * Fix CVE-2026-58039: A flaw in Node.js Permission Model enforcement allows process.report writes (and overwrites) files outside --allow-fs-write paths. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations * Fix CVE-2026-58043! A flaw in Node.js Permission Model enforcement can over-grant filesystem access across radix-tree prefix boundaries. Under `--permission`, an attacker who is granted access to one path can abuse boundary handling to read from or write to paths outside the intended filesystem allowlist. * Fix CVE-2026-58040: An incomplete fix has been identified in Node.js: HTTPS Agent TLS session reuse skips hostname verification across identity policies (incomplete fix of CVE-2026-48934). 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