{"id":"EUVD-2026-108169","enisaUuid":"42d57d45-3372-37f9-9ddd-62b353c64700","description":"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.","datePublished":"Oct 22, 2026, 1:35:41 PM","dateUpdated":"Oct 24, 2026, 3:55:16 AM","baseScore":9.2,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"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\n","aliases":"CVE-2026-111497\nGHSA-9v8h-qqgm-4m35\n","assigner":"Google","epss":0.48,"enisaIdProduct":[{"id":"3162cbe2-1794-385a-8d96-8a15aa0de535","product":{"name":"Brotli","vendor":{"name":"Google LLC"}},"product_version":"1.1.0 \u003c1.1.1"},{"id":"4d846675-d170-38a3-b1c5-f3ace6cc6041","product":{"name":"Brotli","vendor":{"name":"Google LLC"}},"product_version":"1.0.3 \u003c1.0.10"},{"id":"9daba050-dd06-37c7-add9-0d10c757b0f9","product":{"name":"Brotli","vendor":{"name":"Google LLC"}},"product_version":"1.2.0 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AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"9a440f05-5f42-353b-b8bb-ce7b4fd635d9","vulnerability":{"id":"PYSEC-2026-4322","description":"Out-of-bounds write in the Brotli decoder (\"Node2Shell\") also affects the PyPI Brotli package","datePublished":"Oct 23, 2026, 12:00:00 AM","dateUpdated":"Oct 23, 2026, 12:00:00 AM","baseScore":0.0,"references":"https://github.com/google/brotli/commit/0ed4268a4401abcb4472096340477cf4af7d1a2b\nhttps://www.cve.org/CVERecord?id\u003dCVE-2026-111497\nhttps://opensourcemalware.com/blog/node2shell-affects-python\nhttps://nodejs.org/en/blog/vulnerability/october-2026-security-releases\nhttps://github.com/google/brotli/releases/tag/v1.2.1\nhttps://pypi.org/project/Brotli/\n","enisa_id":"EUVD-2026-108169\n","aliases":"CVE-2026-111497\n","epss":0.0,"dataProcessed":"Oct 24, 2026, 9:01:01 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"bd6271b4-8cf5-38b1-b44f-7511d34ea4ac","vulnerability":{"id":"GHSA-9v8h-qqgm-4m35","description":"Brotli: Out-of-bounds write in the Brotli decoder (\"Node2Shell\") also affects the PyPI Brotli package","datePublished":"Oct 22, 2026, 3:32:49 PM","dateUpdated":"Oct 23, 2026, 7:08:09 PM","baseScore":0.0,"references":"https://nvd.nist.gov/vuln/detail/CVE-2026-111497\nhttps://github.com/google/brotli/commit/0ed4268a4401abcb4472096340477cf4af7d1a2b\nhttps://github.com/google/brotli/commit/50a9b70a4d5e1443fc40927952276b68fffa83a0\nhttps://github.com/google/brotli/commit/b418fa81c48262a86a95332b0bc6d62c30aa78b6\nhttps://github.com/google/brotli/commit/da9806362874b9bd4b552a3af360b5d6347beb12\nhttps://www.cve.org/CVERecord?id\u003dCVE-2026-111497\nhttps://pypi.org/project/brotlicffi\nhttps://pypi.org/project/Brotli\nhttps://opensourcemalware.com/blog/node2shell-affects-python\nhttps://nodejs.org/en/blog/vulnerability/october-2026-security-releases#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---high\nhttps://nodejs.org/en/blog/vulnerability/october-2026-security-releases\nhttps://github.com/pypa/advisory-database/tree/main/vulns/brotlicffi/PYSEC-2026-4323.yaml\nhttps://github.com/pypa/advisory-database/tree/main/vulns/brotli/PYSEC-2026-4322.yaml\nhttps://github.com/google/brotli/releases/tag/v1.2.1\nhttps://github.com/google/brotli/releases/tag/v1.1.1\nhttps://github.com/google/brotli/releases/tag/v1.0.10\nhttps://github.com/google/brotli\n","enisa_id":"EUVD-2026-108169\n","aliases":"GHSA-9v8h-qqgm-4m35\n","epss":0.0,"dataProcessed":"Oct 24, 2026, 9:00:43 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"f9f5ce45-03e3-33dc-9cae-9b50ed189d96","vulnerability":{"id":"CVE-2026-111497","description":"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.","datePublished":"Oct 22, 2026, 1:35:41 PM","dateUpdated":"Oct 24, 2026, 3:55:16 AM","status":"PUBLISHED","baseScore":9.2,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"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\n","enisa_id":"EUVD-2026-108169\n","assigner":"Google","epss":0.48,"dataProcessed":"Oct 24, 2026, 10:00:08 AM","vulnerabilityProduct":[{"id":"17e5d9f7-de77-3bb7-8a3f-492a2f65e570","product":{"name":"Brotli","vendor":{"name":"Google LLC"}},"product_version":"1.1.0 \u003c1.1.1"},{"id":"bd0c73fd-1360-3f41-adce-b26af338ba09","product":{"name":"Brotli","vendor":{"name":"Google LLC"}},"product_version":"1.2.0 \u003c1.2.1"},{"id":"cddefc43-05fa-3732-8b67-074bc54f9e36","product":{"name":"Brotli","vendor":{"name":"Google LLC"}},"product_version":"1.0.3 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