{ "document": { "aggregate_severity": { "text": "Critical" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" }, { "category": "details", "text": "CVE-2026-111497: reject invalid block switch commands in the\n decoder instead of silently ignoring them\n- Build with the base cmake and gcc on EL7, EPEL and SCL are not available,\n force 64-bit mode on aarch64 where gcc 4.8 breaks the decoder", "title": "Details" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1792867127", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1792867127" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/centos7els/advisories/2026/clsa-2026_1792867127.json" } ], "tracking": { "current_release_date": "2026-10-29T22:02:10Z", "generator": { "date": "2026-10-29T22:02:10Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1792867127", "initial_release_date": "2026-10-24T18:38:50Z", "revision_history": [ { "date": "2026-10-24T18:38:50Z", "number": "1", "summary": "Initial version" }, { "date": "2026-10-29T22:02:10Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "brotli: Fix of CVE-2026-111497" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 7", "product": { "name": "Community Enterprise Operating System 7", "product_id": "CentOS-7", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:7:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product": { "name": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product_id": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libbrotli@1.0.9-10.el7.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product": { "name": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product_id": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/python3-brotli@1.0.9-10.el7.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product": { "name": "brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product_id": "brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/brotli@1.0.9-10.el7.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product": { "name": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product_id": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/brotli-devel@1.0.9-10.el7.tuxcare.els1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product": { "name": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product_id": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libbrotli@1.0.9-10.el7.tuxcare.els1?arch=aarch64" } } }, { "category": "product_version", "name": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product": { "name": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product_id": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/python3-brotli@1.0.9-10.el7.tuxcare.els1?arch=aarch64" } } }, { "category": "product_version", "name": "brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product": { "name": "brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product_id": "brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/brotli@1.0.9-10.el7.tuxcare.els1?arch=aarch64" } } }, { "category": "product_version", "name": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product": { "name": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product_id": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.aarch64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/brotli-devel@1.0.9-10.el7.tuxcare.els1?arch=aarch64" } } } ], "category": "architecture", "name": "aarch64" }, { "branches": [ { "category": "product_version", "name": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.i686", "product": { "name": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.i686", "product_id": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libbrotli@1.0.9-10.el7.tuxcare.els1?arch=i686" } } }, { "category": "product_version", "name": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "product": { "name": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "product_id": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/python3-brotli@1.0.9-10.el7.tuxcare.els1?arch=i686" } } }, { "category": "product_version", "name": "brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "product": { "name": "brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "product_id": "brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/brotli@1.0.9-10.el7.tuxcare.els1?arch=i686" } } }, { "category": "product_version", "name": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.i686", "product": { "name": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.i686", "product_id": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/brotli-devel@1.0.9-10.el7.tuxcare.els1?arch=i686" } } } ], "category": "architecture", "name": "i686" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.x86_64" }, "product_reference": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.aarch64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.aarch64" }, "product_reference": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.i686 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.i686" }, "product_reference": "libbrotli-0:1.0.9-10.el7.tuxcare.els1.i686", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64" }, "product_reference": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.i686 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.i686" }, "product_reference": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64" }, "product_reference": "python3-brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64" }, "product_reference": "brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "brotli-0:1.0.9-10.el7.tuxcare.els1.i686 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.i686" }, "product_reference": "brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64" }, "product_reference": "brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.aarch64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.aarch64" }, "product_reference": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.aarch64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.i686 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.i686" }, "product_reference": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.i686", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.x86_64" }, "product_reference": "brotli-devel-0:1.0.9-10.el7.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-7" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-111497", "cwe": { "id": "CWE-252", "name": "Unchecked Return Value" }, "notes": [ { "category": "description", "text": "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.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.x86_64", "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-111497" }, { "category": "external", "summary": "https://github.com/andybalholm/brotli/releases/tag/v1.2.7", "url": "https://github.com/andybalholm/brotli/releases/tag/v1.2.7" }, { "category": "external", "summary": "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", "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" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/10/23/25", "url": "http://www.openwall.com/lists/oss-security/2026/10/23/25" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/10/24/6", "url": "http://www.openwall.com/lists/oss-security/2026/10/24/6" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/10/26/12", "url": "http://www.openwall.com/lists/oss-security/2026/10/26/12" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/10/26/13", "url": "http://www.openwall.com/lists/oss-security/2026/10/26/13" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/10/26/16", "url": "http://www.openwall.com/lists/oss-security/2026/10/26/16" }, { "category": "external", "summary": "https://broccoli2shell.com", "url": "https://broccoli2shell.com/" }, { "category": "external", "summary": "https://github.com/advisories/GHSA-9v8h-qqgm-4m35", "url": "https://github.com/advisories/GHSA-9v8h-qqgm-4m35" }, { "category": "external", "summary": "https://github.com/dotnet/announcements/issues/494", "url": "https://github.com/dotnet/announcements/issues/494" }, { "category": "external", "summary": "https://github.com/google/brotli/releases/tag/v1.0.10", "url": "https://github.com/google/brotli/releases/tag/v1.0.10" }, { "category": "external", "summary": "https://github.com/google/brotli/releases/tag/v1.1.1", "url": "https://github.com/google/brotli/releases/tag/v1.1.1" }, { "category": "external", "summary": "https://github.com/google/brotli/releases/tag/v1.2.1", "url": "https://github.com/google/brotli/releases/tag/v1.2.1" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2026/10/msg00049.html", "url": "https://lists.debian.org/debian-lts-announce/2026/10/msg00049.html" }, { "category": "external", "summary": "https://patchtheplanet.org/brotli", "url": "https://patchtheplanet.org/brotli" }, { "category": "external", "summary": "https://www.aikido.dev/blog/node2shell-nodejs-brotli-rce-cve-2026-111497", "url": "https://www.aikido.dev/blog/node2shell-nodejs-brotli-rce-cve-2026-111497" }, { "category": "external", "summary": "https://ellio.tech/en/blog/node2shell-cve-2026-111497-rce-on-stock-nodejs-builds/", "url": "https://ellio.tech/en/blog/node2shell-cve-2026-111497-rce-on-stock-nodejs-builds/" }, { "category": "external", "summary": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-111497", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-111497" } ], "release_date": "2026-10-22T14:17:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-10-24T18:38:50.646224Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1792867127", "product_ids": [ "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.x86_64", "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1792867127" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:brotli-devel-0:1.0.9-10.el7.tuxcare.els1.x86_64", "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:libbrotli-0:1.0.9-10.el7.tuxcare.els1.x86_64", "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.aarch64", "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.i686", "CentOS-7:python3-brotli-0:1.0.9-10.el7.tuxcare.els1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Critical" } ] } ] }