CVE search · CVE-2026-111497
CVE-2026-111497
critical 9.2 Known exploited
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.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- cve-coordination@google.com
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 4.0 | critical 9.2 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
cve-coordination@google.comSecondary |
| CVSS 3.1 | critical 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
nvd@nist.govPrimary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- google · brotli
- nodejs · node.js
- python-hyper · brotlicffi
- microsoft · .net
- debian · debian_linux
- istio · istio
- anthropic · bun
- envoyproxy · envoy
- tianocore · edk2
- google · woff2
- duckdb · duckdb
- clickhouse · clickhouse
- apache · arrow
- mcmilk · 7-zip-zstd
- 7-zip · p7zip
- andybalholm · brotli
- siemens · ruggedcom_ape1808_firmware
- siemens · common_configurator
- siemens · data_flow_monitoring
- siemens · dataxess_configurator
- siemens · edge_opc_ua_server_configurator
- siemens · flow_creator_configurator
- siemens · industrial_edge_cloud_connector_configurator
- siemens · industrial_edge_databus_configurator
- siemens · industrial_edge_hub
- siemens · industrial_edge_management_cloud
- siemens · comos_walkinside
- siemens · simatic_braumat
- siemens · simatic_profiling_tool
- siemens · simatic_sistar
- siemens · simatic_wincc
- siemens · simatic_wincc_companion
- siemens · simatic_wincc_runtime
- siemens · simatic_wincc_unified_for_industrial_edge
- siemens · simatic_wincc_unified_pc_runtime
- siemens · simatic_wincc_unified_siqence
- siemens · tia_administrator
- siemens · tia_project-server_web_administration_tool
- siemens · user_management_component
- siemens · hyperlynx
- siemens · innexis_architecture_native_acceleration
- siemens · insights_hub
- siemens · opcenter_connect_electronics
- siemens · opcenter_connect_manufacturing_operations_management
- siemens · opcenter_execution_core
- siemens · opcenter_execution_discrete
- siemens · opcenter_execution_foundation
- siemens · opcenter_execution_pharma
- siemens · opcenter_execution_process
- siemens · opcenter_intelligence
- siemens · opcenter_quality
- siemens · opcenter_rd&l
- siemens · opcenter_x
- siemens · pads_professional
- siemens · pave360_automotive
- siemens · process_preparation_x
- siemens · simcenter_executable_digital_twin
- siemens · simcenter_studio
- siemens · teamcenter
- siemens · xpedition_designer
- siemens · xpedition_enterprise
References
- https://github.com/andybalholm/brotli/releases/tag/v1.2.7Release Notes
- https://nodejs.org/en/blog/vulnerability/october-2026-security-releases#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---highThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/10/23/25Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/10/24/6Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/10/26/12Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/10/26/13Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/10/26/16Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/11/03/2Mailing ListThird Party Advisory
- https://broccoli2shell.comThird Party Advisory
- https://github.com/advisories/GHSA-9v8h-qqgm-4m35Third Party Advisory
- https://github.com/dotnet/announcements/issues/494Issue TrackingMitigationThird Party Advisory
- https://github.com/google/brotli/releases/tag/v1.0.10Release Notes
- https://github.com/google/brotli/releases/tag/v1.1.1Release Notes
- https://github.com/google/brotli/releases/tag/v1.2.1Release Notes
- https://lists.debian.org/debian-lts-announce/2026/10/msg00049.htmlMailing ListThird Party Advisory
- https://patchtheplanet.org/brotliThird Party Advisory
- https://www.aikido.dev/blog/node2shell-nodejs-brotli-rce-cve-2026-111497Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-045512.htmlThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-242944.htmlThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-443410.htmlThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-678870.htmlThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-898633.htmlThird Party Advisory
- https://ellio.tech/en/blog/node2shell-cve-2026-111497-rce-on-stock-nodejs-builds/Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-111497US Government Resource