{"id":"CVE-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.\n\n\n\n\n\nUsers 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.","aliases":["BIT-node-2026-111497","BIT-node-min-2026-111497"],"modified":"2026-10-23T10:30:53.755876901Z","published":"2026-10-22T13:35:41.975Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111497.json","unresolved_ranges":[{"extracted_events":[{"range":[{"introduced":"1.0.3"},{"fixed":"1.0.10"},{"introduced":"1.1.0"},{"fixed":"1.1.1"},{"introduced":"1.2.0"},{"fixed":"1.2.1"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]}],"cna_assigner":"Google","cwe_ids":["CWE-252","CWE-787"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111497.json"},{"type":"PACKAGE","url":"https://github.com/google/brotli"},{"type":"FIX","url":"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"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111497"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/google/brotli","events":[{"introduced":"533843e3546cd24c8344eaa899c6b0b681c8d222"},{"last_affected":"028fb5a23661f123017c060daa546b55cf4bde29"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"1.0.3"},{"last_affected":"1.2.0"}],"source":"DESCRIPTION"}]}}],"versions":["v1.0.9","v1.1.0","go/cbrotli/v1.1.0","v1.2.0","v1.2.0rc2","dev/null","v1.2.0rc1","go/cbrotli/v1.1.1-rc0","go/brotli/v1.1.1-rc0","go/cbrotli/v1.1.0.bcr.1","go/cbrotli/v1.1.0.bcr.0","v1.1.0rc","v1.0.8","v1.0.7","v1.0.6","v1.0.5","v1.0.4","v1.0.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111497.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}