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"Affected", "package_name": "tar", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "ubi9/php-80", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Affected", "package_name": "rhelai3/bootc-cuda-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Affected", "package_name": "io.hawt-project", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Affected", "package_name": "io.hawt-project", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "io.hawt-project", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "io.hawt-project", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-dashboard-rhel8", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-dashboard-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-console-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Affected", "package_name": "odf4/mcg-core-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Affected", "package_name": "odf4/odf-console-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3:", "fix_state": "Affected", "package_name": "devspaces/udi-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Affected", "package_name": "openshift-gitops-1/argocd-rhel8", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_bpms_platform:7", "fix_state": "Affected", "package_name": "org.uberfire-uberfire-parent", "product_name": "Red Hat Process Automation 7"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Affected", "package_name": "quay/quay-rhel9", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Affected", "package_name": "satellite/iop-remediations-rhel9", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:red_hat_single_sign_on:7", "fix_state": "Affected", "package_name": "org.keycloak-keycloak-parent", "product_name": "Red Hat Single Sign-On 7"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Affected", "package_name": "rhtas/rekor-search-ui-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}, {"cpe": "cpe:/a:redhat:trusted_profile_analyzer:2", "fix_state": "Affected", "package_name": "rhtpa/rhtpa-trustification-service-rhel9", "product_name": "Red Hat Trusted Profile Analyzer"}], "public_date": "2026-01-20T00:40:48Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23950\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23950\nhttps://github.com/isaacs/node-tar/commit/3b1abfae650056edfabcbe0a0df5954d390521e6\nhttps://github.com/isaacs/node-tar/security/advisories/GHSA-r6q2-hw4h-h46w"], "statement": "This vulnerability is rated Important for Red Hat products. The `node-tar` library is susceptible to a race condition due to incomplete handling of Unicode path collisions, which can lead to arbitrary file overwrites via symlink poisoning. However, this issue primarily affects case-insensitive or normalization-insensitive filesystems. Red Hat Enterprise Linux and other Red Hat products typically utilize case-sensitive filesystems, which may limit the direct impact of this flaw in default configurations.", "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-04-18T19:03:43.459485+00:00", "value": {"mitigation_remediation": ["Upgrade node-tar to version 7.5.4 or later, which updates path-reservations.js to normalize paths in a manner consistent with macOS file systems.", "If an immediate upgrade is not possible, filter out all SymbolicLink entries from any tarball before extraction, as recommended by the vendor interim workaround.", "Implement extraction sandboxing or run the extraction process under a non\u2011privileged user account to limit the potential damage of an arbitrary file overwrite."], "summary": {"action": "Apply Patch", "impact": "Arbitrary file overwrite via symlink poisoning"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Isaac\u2019s node-tar library (used in Node.js) versions up through 7.5.3 when run on macOS operating systems that use APFS or HFS+ file systems. Users who extract tarballs with this library on those platforms are at risk.", "description_and_impact": "A race condition exists in the path reservation system of node-tar that allows Unicode path collisions on case-insensitive, normalization-insensitive file systems such as macOS APFS. Because colliding names such as the German \u00df and the letters ss are treated as equivalent on such file systems, concurrent extraction of malicious entries bypasses the library\u2019s internal locks and enables an attacker to create or overwrite arbitrary files. If the attacker succeeds, they could place a malicious executable in a location that the application later reads, potentially leading to integrity violations and possibly allowing arbitrary code execution depending on the application\u2019s execution context.", "risk_and_exploitability": "A CVSS v3 score of 8.8 indicates high severity. The EPSS score is below 1\u202f%, showing a very low but non\u2011zero exploitation probability, and the issue is not listed in the CISA Known Exploited Vulnerabilities catalog. The primary attack vector is the processing of a malicious tar archive by a system that uses node-tar for extraction, either locally or via a remote service that performs extraction on behalf of users. Successful exploitation requires that the target file system is case\u2011insensitive and normalizing\u2011insensitive; only then do the path collisions occur."}}}}, "created": "2026-01-20T08:40:07.325302+00:00", "updated": "2026-04-18T19:15:10.602783+00:00", "vendors": ["isaacs", "isaacs$PRODUCT$tar"]}