CVE-2026-104848

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{"bugzilla": {"description": "tinypool: tinypool: arbitrary code execution via prototype pollution in worker options", "id": "2545291", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545291"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-915", "details": ["Tinypool is a minimal Node.js worker thread pool implementation. Prior to 2.1.1, Tinypool constructs ThreadPool.options from a normal options object and reads the execArgv and env worker options in dist/index.js, allowing values inherited from a polluted Object.prototype to be copied into own properties and passed to worker_threads.Worker. An attacker who can first pollute either property can cause each newly spawned worker to load attacker-selected JavaScript through command-line preload arguments or NODE_OPTIONS, resulting in code execution with the host process's privileges and possible access to CI secrets, signing material, or build artifacts. This issue is fixed in version 2.1.1.", "A flaw was found in tinypool. When an attacker is able to modify base JavaScript object properties (prototype pollution), tinypool inadvertently copies these inherited configuration values into newly spawned worker threads. An attacker can exploit this behavior by injecting malicious startup arguments or environment variables, resulting in arbitrary code execution with the privileges of the host process."], "mitigation": {"lang": "en:us", "value": "Update tinypool to version 2.1.1 or later when the fixed package is available for the affected product. Until then, prevent untrusted input from modifying JavaScript object prototypes and avoid passing attacker-controlled objects into worker options. No universal workaround has been validated by Red Hat."}, "name": "CVE-2026-104848", "package_state": [{"cpe": "cpe:/a:redhat:amq_broker:7", "fix_state": "Affected", "package_name": "amq-broker-bin.zip", "product_name": "Red Hat AMQ Broker 7"}, {"cpe": "cpe:/a:redhat:amq_broker:7", "fix_state": "Affected", "package_name": "amq-broker-maven-repository.zip", "product_name": "Red Hat AMQ Broker 7"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Not affected", "package_name": "ansible-automation-platform-26/gateway-rhel9", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Not affected", "package_name": "automation-gateway", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Not affected", "package_name": "automation-platform-ui", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:podman_desktop:1", "fix_state": "Affected", "package_name": "rh-podman-desktop", "product_name": "Red Hat Build of Podman Desktop"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "jaeger", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "opentelemetry-collector", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "opentelemetry-collector-contrib", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "opentelemetry-collector-k8s", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "prometheus3.13", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Not affected", "package_name": "jboss-eap.1-runtime-maven-repository.zip", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Not affected", "package_name": "jboss-eap-runtime-maven-repository.zip", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Not affected", "package_name": "jboss-eap.1-runtime-maven-repository.zip", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Not affected", "package_name": "jboss-eap-runtime-maven-repository.zip", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}], "public_date": "2026-10-02T16:15:04Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-104848\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-104848\nhttps://github.com/tinylibs/tinypool/commit/24df4e730e7d0857a6d226c9b58f8924227404fd\nhttps://github.com/tinylibs/tinypool/pull/134\nhttps://github.com/tinylibs/tinypool/releases/tag/v2.1.1\nhttps://github.com/tinylibs/tinypool/security/advisories/GHSA-5gmw-xhrv-c9v3"], "statement": "Red Hat rates this vulnerability as Important. An attacker who can modify an object prototype in an application using tinypool may cause newly created worker threads to load attacker-controlled JavaScript through inherited worker options. Products are affected only where the vulnerable tinypool code is shipped and reachable in a runtime path", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.1.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "tinypool", "source": "cna", "vendor": "tinylibs"}, "product": "tinypool", "vendor": "tinylibs"}], "created": "2026-10-02T17:30:18.091853+00:00", "updated": "2026-10-08T14:30:18.950001+00:00", "vendors": ["tinylibs", "tinylibs$PRODUCT$tinypool"]}