{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-33236", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-18T02:42:27.508Z", "datePublished": "2026-03-20T22:47:10.308Z", "dateUpdated": "2026-07-21T12:05:14.128Z" }, "containers": { "cna": { "title": "NLTK has a Downloader Path Traversal Vulnerability (AFO) - Arbitrary File Overwrite", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/nltk/nltk/security/advisories/GHSA-469j-vmhf-r6v7", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/nltk/nltk/security/advisories/GHSA-469j-vmhf-r6v7" }, { "name": "https://github.com/nltk/nltk/commit/89fe2ec2c6bae6e2e7a46dad65cc34231976ed8a", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/nltk/nltk/commit/89fe2ec2c6bae6e2e7a46dad65cc34231976ed8a" } ], "affected": [ { "vendor": "nltk", "product": "nltk", "versions": [ { "version": "<= 3.9.3", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-20T22:47:10.308Z" }, "descriptions": [ { "lang": "en", "value": "NLTK (Natural Language Toolkit) is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. In versions 3.9.3 and prior, the NLTK downloader does not validate the `subdir` and `id` attributes when processing remote XML index files. Attackers can control a remote XML index server to provide malicious values containing path traversal sequences (such as `../`), which can lead to arbitrary directory creation, arbitrary file creation, and arbitrary file overwrite. Commit 89fe2ec2c6bae6e2e7a46dad65cc34231976ed8a patches the issue." } ], "source": { "advisory": "GHSA-469j-vmhf-r6v7", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-03-23T16:46:32.428625Z", "id": "CVE-2026-33236", "options": [ { "Exploitation": "poc" }, { "Automatable": "yes" }, { "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": "2026-03-23T16:46:42.554Z" } }, { "affected": [ { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:openshift_ai:2.25::el9" ], "defaultStatus": "affected", "packageName": "rhoai/odh-pipeline-runtime-pytorch-llmcompressor-cuda-py312-rhel9", "product": "Red Hat OpenShift AI 2.25", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": 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The NLTK downloader does not validate `subdir` and `id` attributes when processing remote XML index files. A remote attacker can exploit this path traversal vulnerability by controlling a malicious XML index server, providing specially crafted values. This can lead to arbitrary directory creation, arbitrary file creation, and arbitrary file overwrite on the system where NLTK is used." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H", "version": "3.1" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-22", "description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-33236" }, { "name": "RHBZ#2449824", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449824" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33236.json" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:10184" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:42644" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:19712" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:37275" } ], "solutions": [ { "lang": "en", "value": "RHSA-2026:10184: Red Hat OpenShift AI 2.25" }, { "lang": "en", "value": "RHSA-2026:42644: Red Hat OpenShift AI 2.25" }, { "lang": "en", "value": "RHSA-2026:19712: Red Hat OpenShift AI 3.3" }, { "lang": "en", "value": "RHSA-2026:37275: Red Hat OpenShift AI 3.3" } ], "timeline": [ { "lang": "en", "time": "2026-03-20T23:01:51.656Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-03-20T22:47:10.308Z", "value": "Made public." } ], "title": "nltk: NLTK: Arbitrary file overwrite and creation via path traversal in XML index files", "workarounds": [ { "lang": "en", "value": "To mitigate this issue, ensure that any applications utilizing the NLTK downloader are configured to only interact with trusted XML index servers. Restrict network access for the application using NLTK to prevent connections to untrusted external resources. This operational control reduces the risk of an attacker controlling a malicious server to exploit the path traversal vulnerability. A service restart or reload may be required for network configuration changes to take effect." } ], "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-21T12:05:14.128Z" } } ] } }