BIT-brotli-2026-111497

Dashboard / Vulnerabilities / BIT-brotli-2026-111497

BIT-brotli-2026-111497

Summary: Out-of-Bounds Write in Google Brotli Decoder

Details: A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream. Users need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1.

References: http://www.openwall.com/lists/oss-security/2026/10/23/25, http://www.openwall.com/lists/oss-security/2026/10/24/6, http://www.openwall.com/lists/oss-security/2026/10/26/12, http://www.openwall.com/lists/oss-security/2026/10/26/13, http://www.openwall.com/lists/oss-security/2026/10/26/16, https://broccoli2shell.com, https://ellio.tech/en/blog/node2shell-cve-2026-111497-rce-on-stock-nodejs-builds/, https://github.com/advisories/GHSA-9v8h-qqgm-4m35, https://github.com/andybalholm/brotli/releases/tag/v1.2.7, https://github.com/dotnet/announcements/issues/494, https://github.com/google/brotli/releases/tag/v1.0.10, https://github.com/google/brotli/releases/tag/v1.1.1, https://github.com/google/brotli/releases/tag/v1.2.1, https://lists.debian.org/debian-lts-announce/2026/10/msg00049.html, https://nodejs.org/en/blog/vulnerability/october-2026-security-releases#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---high, https://nvd.nist.gov/vuln/detail/CVE-2026-111497, https://patchtheplanet.org/brotli, https://www.aikido.dev/blog/node2shell-nodejs-brotli-rce-cve-2026-111497, https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-111497