{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53940", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-11T15:46:12.318Z", "datePublished": "2026-09-21T15:35:37.770Z", "dateUpdated": "2026-09-21T15:35:37.770Z"}, "containers": {"cna": {"title": "Conda: Entry-point path traversal in noarch:python install (arbitrary file write) \u2014 canonical Python implementation", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-73", "lang": "en", "description": "CWE-73: External Control of File Name or Path", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/conda/conda/security/advisories/GHSA-9m8m-c4j3-rj2c", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/conda/conda/security/advisories/GHSA-9m8m-c4j3-rj2c"}, {"name": "https://github.com/conda/conda/pull/16168", "tags": ["x_refsource_MISC"], "url": "https://github.com/conda/conda/pull/16168"}, {"name": "https://github.com/conda/conda/commit/3987c86ccd5527177e96b48bd4dc1777dd2c9baa", "tags": ["x_refsource_MISC"], "url": "https://github.com/conda/conda/commit/3987c86ccd5527177e96b48bd4dc1777dd2c9baa"}, {"name": "https://github.com/conda/conda/releases/tag/26.5.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/conda/conda/releases/tag/26.5.2"}], "affected": [{"vendor": "conda", "product": "conda", "versions": [{"version": "< 26.5.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-21T15:35:37.770Z"}, "descriptions": [{"lang": "en", "value": "Conda is a system-level binary package and environment manager that runs on major operating systems and platforms. Prior to 26.5.2, parse_entry_point_def in conda/common/path/python.py accepted an unvalidated entry-point command from a noarch:python package's info/link.json metadata. CreatePythonEntryPointAction in conda/core/path_actions.py interpolated that command into target_short_path, and PrefixPathAction.target_full_path joined it to the installation prefix without verifying that the result remained under the intended bin or Scripts directory. create_python_entry_point in conda/gateways/disk/create.py then wrote an executable wrapper to the resulting path. A malicious package could use path separators, traversal segments, or an absolute command path to write outside the prefix or overwrite another in-prefix entry point during default install and environment transactions. Out-of-prefix writes require the target parent directory to exist, while an overwritten entry point can execute attacker-controlled Python when later invoked with the installing user's privileges. This issue is fixed in version 26.5.2."}], "source": {"advisory": "GHSA-9m8m-c4j3-rj2c", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "conda", "vendor": "conda", "versions": [{"status": "affected", "version": "< 26.5.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Conda is a system-level binary package and environment manager that runs on major operating systems and platforms. Prior to 26.5.2, parse_entry_point_def in conda/common/path/python.py accepted an unvalidated entry-point command from a noarch:python package's info/link.json metadata. CreatePythonEntryPointAction in conda/core/path_actions.py interpolated that command into target_short_path, and PrefixPathAction.target_full_path joined it to the installation prefix without verifying that the result remained under the intended bin or Scripts directory. create_python_entry_point in conda/gateways/disk/create.py then wrote an executable wrapper to the resulting path. A malicious package could use path separators, traversal segments, or an absolute command path to write outside the prefix or overwrite another in-prefix entry point during default install and environment transactions. Out-of-prefix writes require the target parent directory to exist, while an overwritten entry point can execute attacker-controlled Python when later invoked with the installing user's privileges. This issue is fixed in version 26.5.2."}], "id": "CVE-2026-53940", "lastModified": "2026-09-21T16:17:09.010", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-21T16:17:09.010", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/conda/conda/commit/3987c86ccd5527177e96b48bd4dc1777dd2c9baa"}, {"source": "security-advisories@github.com", "url": "https://github.com/conda/conda/pull/16168"}, {"source": "security-advisories@github.com", "url": "https://github.com/conda/conda/releases/tag/26.5.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/conda/conda/security/advisories/GHSA-9m8m-c4j3-rj2c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-73"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-09-21T17:00:09.677441+00:00", "updated": "2026-09-21T17:00:09.677456+00:00", "vendors": [], "weaknesses": ["CWE-22", "CWE-73"]}