On 10/23/26 12:12, Jan Schaumann wrote:
Alan Coopersmith <[email protected]> wrote:
Node.js Brotli decoder out-of-bounds write permits remote code execution
(CVE-2026-111497) - (high)
A flaw in Node.js can cause Node.js Brotli decoder out-of-bounds write
permits remote code execution.
This vulnerability affects Node.js 26.x, 24.x, and 22.x.
It's not quite obvious from this advisory, but the
underlying problem is not restricted to Node.js alone,
but rather in Google brotli:
https://github.com/advisories/GHSA-9v8h-qqgm-4m35
This trickles down into any consumer, including, e.g.,
Envoy:
https://github.com/envoyproxy/envoy/security/advisories/GHSA-3wvj-j6qm-62mr
Yes, https://patchtheplanet.org/brotli reports this as well.
https://github.com/google/brotli/releases/tag/v1.2.1 has been published for
the library itself.
The patchtheplanet page lists releases from Node.js, Bun, Envoy Proxy, & Istio
incorporating it and gives suggestions on what other software to check.
https://www.aikido.dev/blog/python-packages-vulnerable-node2shell-brotli-cve-2026-111497
adds the PyPi brotli packages to the list as well.
--
-Alan Coopersmith- [email protected]
Oracle Solaris Engineering - https://blogs.oracle.com/solaris
