CVE-2026-23745

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23745", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-15T15:45:01.958Z", "datePublished": "2026-01-16T22:00:08.769Z", "dateUpdated": "2026-09-07T12:04:48.619Z"}, "containers": {"cna": {"title": "node-tar Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97"}, {"name": "https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e", "tags": ["x_refsource_MISC"], "url": "https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e"}], "affected": [{"vendor": "isaacs", "product": "node-tar", "versions": [{"version": "< 7.5.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-01-16T22:00:08.769Z"}, "descriptions": [{"lang": "en", "value": "node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3."}], "source": {"advisory": "GHSA-8qq5-rm4j-mr97", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-01-20T14:52:52.988465Z", "id": "CVE-2026-23745", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-20T14:53:24.513Z"}}, {"affected": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:10.2"], "defaultStatus": "affected", "packageName": "linux-sgx", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.26-7.el10", "versionType": "rpm"}]}, {"collectionURL": 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This vulnerability allows an attacker to craft malicious archives that, when extracted, can bypass intended security restrictions. 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The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3."}, {"lang": "es", "value": "node-tar es un Tar para Node.js. La biblioteca node-tar (&lt;= 7.5.2) no sanea la ruta de enlace de las entradas Link (enlace duro) y SymbolicLink cuando preservePaths es falso (el comportamiento seguro predeterminado). Esto permite a archivos maliciosos eludir la restricci\u00f3n de la ra\u00edz de extracci\u00f3n, lo que lleva a la Sobrescritura Arbitraria de Archivos mediante enlaces duros y al Envenenamiento de Symlink mediante destinos de symlink absolutos. 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{"bugzilla": {"description": "node-tar: tar: node-tar: Arbitrary file overwrite and symlink poisoning via unsanitized linkpaths in archives", "id": "2430538", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2430538"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-22", "details": ["node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.", "A flaw was found in the node-tar library. This vulnerability allows an attacker to craft malicious archives that, when extracted, can bypass intended security restrictions. This leads to arbitrary file overwrite and symlink poisoning, potentially allowing unauthorized modification of files on the system."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-23745", "package_state": [{"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Affected", "package_name": "openshift-sandboxed-containers/osc-pccs", "product_name": "Confidential Compute Attestation"}, {"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Affected", "package_name": "io.cryostat-cryostat", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:logging:5", "fix_state": "Affected", "package_name": "openshift-logging/kibana6-rhel8", "product_name": "Logging Subsystem for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:rhmt:1", 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Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "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": "2026-01-16T22:00:08Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23745\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23745\nhttps://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e\nhttps://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97"], "statement": "This vulnerability is rated Important for Red Hat products that utilize the node-tar library. The flaw allows an attacker to perform arbitrary file overwrite and symlink poisoning by crafting malicious tar archives. This occurs due to insufficient path sanitization of hardlink and symbolic link entries, even when the default secure behavior (preservePaths is false) is enabled.", "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-04-18T05:37:36.815932+00:00", "value": {"mitigation_remediation": ["Upgrade the node-tar library to version 7.5.3 or later, which contains the patch that correctly sanitizes Link and SymbolicLink entries.", "If upgrading is not immediately possible, restrict usage of node-tar to trusted archives only and ensure that preservePaths is set to true to enforce extraction path boundaries.", "Consider running the archive extraction process in an isolated or permission\u2011limited environment (e.g., a sandboxed container) to contain any potential damage from corrupted archives."], "summary": {"action": "Patch", "impact": "Arbitrary File Overwrite and Symlink Poisoning"}, "threat_synthesis": {"affected_systems": "Any application incorporating node\u2011tar version 7.5.2 or earlier on Node.js is affected. The flaw is present in the isaacs:node-tar package, and versions up to and including 7.5.2 lack the necessary path sanitization.\n", "description_and_impact": "The node-tar library, used for extracting Tar archives in Node.js environments, does not properly sanitize the linkpath of Link (hardlink) and SymbolicLink entries when the preservePaths option is set to false. This flaw permits a malicious archive to create or overwrite files outside the intended extraction directory, enabling arbitrary file overwrite and symlink poisoning. The vulnerability is a classic path traversal issue (CWE\u201122) and can compromise confidentiality, integrity, and availability of the host system if exploited.\n", "risk_and_exploitability": "The CVSS score of 8.2 indicates a high severity potential. The EPSS score is listed as less than 1%, suggesting low current exploitation probability, but the flaw is not included in the CISA KEV catalog. Exploitation requires delivery of a crafted tar archive to a vulnerable application. If the application processes untrusted tar files\u2014whether locally by a user or remotely through a web service\u2014the attacker can cause arbitrary file overwrite or symlink poisoning, potentially gaining elevated privileges or disabling services. The attack vector is likely local or remote file upload, depending on how the application ingests archives."}}}}, "created": "2026-01-19T09:19:46.916290+00:00", "updated": "2026-04-18T05:45:38.170894+00:00", "vendors": ["isaacs", "isaacs$PRODUCT$tar"]}