CVE-2026-40164

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"versionType": "rpm"}], "packageName": "jq", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_eus:9.6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:1.6-17.el9_6.4", "lessThan": "*", "versionType": "rpm"}], "packageName": "jq", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.12::el8"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.12", "versions": [{"status": "unaffected", "version": "412.86.202606140301-0", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhcos", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.13::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.13", "versions": [{"status": "unaffected", "version": "413.92.202606160406-0", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhcos", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.14::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.14", "versions": [{"status": "unaffected", "version": "414.92.202606231112-0", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhcos", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.15::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.15", "versions": [{"status": "unaffected", "version": "415.92.202606030318-0", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhcos", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.16::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.16", "versions": [{"status": "unaffected", "version": "416.94.202606051757-0", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhcos", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.17::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.17", "versions": [{"status": "unaffected", "version": "417.94.202606250942-0", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhcos", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.18::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.18", "versions": [{"status": "unaffected", "version": "418.94.202606051320-0", "lessThan": "*", 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"defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3.3::el9"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server 3.3", "versions": [{"status": "unaffected", "version": "1782352847", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhaiis/vllm-cuda-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:hummingbird:1"], "vendor": "Red Hat", "product": "Red Hat Hardened Images", "versions": [{"status": "unaffected", "version": "1.8.1-3.hum1", "lessThan": "*", "versionType": "rpm"}], "packageName": "jq-main", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2026-04-14T00:16:07.360", "references": [{"url": "https://github.com/jqlang/jq/commit/0c7d133c3c7e37c00b6d46b658a02244fdd3c784", "source": "security-advisories@github.com"}, {"url": 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Before commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784, jq used MurmurHash3 with a hardcoded, publicly visible seed (0x432A9843) for all JSON object hash table operations, which allowed an attacker to precompute key collisions offline. By supplying a crafted JSON object (~100 KB) where all keys hashed to the same bucket, hash table lookups degraded from O(1) to O(n), turning any jq expression into an O(n\u00b2) operation and causing significant CPU exhaustion. This affected common jq use cases such as CI/CD pipelines, web services, and data processing scripts, and was far more practical to exploit than existing heap overflow issues since it required only a small payload. This issue has been patched in commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784."}, {"lang": "es", "value": "jq es un procesador JSON de l\u00ednea de comandos. Antes del commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784, jq utilizaba MurmurHash3 con una semilla codificada, visible p\u00fablicamente (0x432A9843) para todas las operaciones de tabla hash de objetos JSON, lo que permit\u00eda a un atacante precalcular colisiones de claves sin conexi\u00f3n. Al proporcionar un objeto JSON manipulado (~100 KB) donde todas las claves se mapeaban al mismo cubo, las b\u00fasquedas en la tabla hash se degradaban de O(1) a O(n), convirtiendo cualquier expresi\u00f3n de jq en una operaci\u00f3n O(n\u00b2) y causando un agotamiento significativo de la CPU. Esto afect\u00f3 a casos de uso comunes de jq como pipelines de CI/CD, servicios web y scripts de procesamiento de datos, y fue mucho m\u00e1s pr\u00e1ctico de explotar que los problemas existentes de desbordamiento de mont\u00edculo, ya que solo requer\u00eda una peque\u00f1a carga \u00fatil. Este problema ha sido parcheado en el commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784."}], "lastModified": "2026-10-26T22:10:00.163", "sourceIdentifier": "security-advisories@github.com"}