{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-13346", "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22", "state": "PUBLISHED", "assignerShortName": "PSF", "dateReserved": "2026-06-25T14:15:08.834Z", "datePublished": "2026-07-29T18:33:50.820Z", "dateUpdated": "2026-07-29T20:21:34.281Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://pypi.org/project/pip", "defaultStatus": "unaffected", "product": "pip", "repo": "https://github.com/pypa/pip", "vendor": "Python Packaging Authority", "versions": [{"lessThan": "26.2", "status": "affected", "version": "0", "versionType": "python"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<div>pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.</div><div><br></div><div>This vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.</div>"}], "value": "pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.\n\n\n\n\nThis vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 5.6, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-36", "description": "CWE-36 Absolute path traversal", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "28c92f92-d60d-412d-b760-e73465c3df22", "shortName": "PSF", "dateUpdated": "2026-07-29T18:36:26.726Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/pypa/pip/pull/14110"}, {"tags": ["vendor-advisory"], "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/L2BNQGGVQCEV7DROOORQ7WFKKFF2OOQX/"}], "source": {"discovery": "UNKNOWN"}, "title": "pip absolute path traversal during download from malicious package indexes", "x_generator": {"engine": "Vulnogram 0.6.0"}, "x_gcve": [{"vulnId": "CVE-2026-13346", "recordType": "advisory"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-29T19:08:27.143201Z", "id": "CVE-2026-13346", "options": [{"Exploitation": "none"}, {"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": "2026-07-29T19:08:36.192Z"}}, {"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/07/29/7"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-07-29T20:21:34.281Z"}}]}, "vulnerability-lookup:meta": {"epss": {"cve": "CVE-2026-13346", "date": "2026-11-13", "epss": "0.00292", "percentile": "0.22082"}, "microsoft_vex": {"current_release_date": "2026-09-13T01:46:18.000Z", "cve": "CVE-2026-13346", "id": "msrc_CVE-2026-13346", "initial_release_date": "2026-08-07T01:00:08.000Z", "product_status:fixed": "4", "product_status:known_affected": "4", "product_status:known_not_affected": "2", "source": "Microsoft CSAF VEX", "status": "final", "title": "pip absolute path traversal during download from malicious package indexes", "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-13346.json", "version": "7"}, "nvd": "{\"cve\":{\"id\":\"CVE-2026-13346\",\"sourceIdentifier\":\"cna@python.org\",\"published\":\"2026-07-29T19:16:44.267\",\"lastModified\":\"2026-10-24T13:10:00.147\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.\\n\\n\\n\\n\\nThis vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.\"},{\"lang\":\"es\",\"value\":\"pip manejar\u00eda incorrectamente las URLs de paquetes doblemente codificadas de los \u00edndices, permitiendo la instalaci\u00f3n de archivos en ubicaciones arbitrarias en el disco incluso al instalar wheels.\\n\\nEsta vulnerabilidad requiere descargar o instalar un paquete de un \u00edndice de paquetes malicioso para tener \u00e9xito; los paquetes maliciosos por s\u00ed solos no son capaces de explotar esta vulnerabilidad. Tenga en cuenta que esta vulnerabilidad solo afecta materialmente a los usuarios que ejecutan \u2019pip download\u2019 con la opci\u00f3n \u2019--only-binary\u2019, ya que instalar distribuciones de c\u00f3digo fuente de un \u00edndice no confiable ya es una operaci\u00f3n insegura que ejecuta c\u00f3digo durante la instalaci\u00f3n.\"}],\"affected\":[{\"source\":\"cna@python.org\",\"affectedData\":[{\"vendor\":\"Python Packaging Authority\",\"product\":\"pip\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://pypi.org/project/pip\",\"repo\":\"https://github.com/pypa/pip\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"26.2\",\"versionType\":\"python\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@python.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":5.6,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"ACTIVE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-29T19:08:27.143201Z\",\"id\":\"CVE-2026-13346\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cna@python.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-36\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pypa:pip:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"26.2\",\"matchCriteriaId\":\"CE28D586-A850-47BB-9629-2C6B1069A090\"}]}]}],\"references\":[{\"url\":\"https://github.com/pypa/pip/pull/14110\",\"source\":\"cna@python.org\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://mail.python.org/archives/list/security-announce@python.org/thread/L2BNQGGVQCEV7DROOORQ7WFKKFF2OOQX/\",\"source\":\"cna@python.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2026/07/29/7\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}", "redhat_vex": {"aggregate_severity": "Moderate", "current_release_date": "2026-11-06T07:39:18+00:00", "cve": "CVE-2026-13346", "id": "CVE-2026-13346", "initial_release_date": "2026-07-29T18:33:50.820000+00:00", "product_status:fixed": "60", "product_status:known_affected": "13", "product_status:known_not_affected": "2", "product_status:under_investigation": "1", "source": "Red Hat CSAF VEX", "status": "final", "title": "pip: pip: Arbitrary file installation via malicious package indexes", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-13346.json", "version": "3"}, "vulnrichment": {"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2026/07/29/7\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-07-29T20:21:34.281Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-13346\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-29T19:08:27.143201Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-29T19:08:32.007Z\"}}], \"cna\": {\"title\": \"pip absolute path traversal during download from malicious package indexes\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 5.6, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"HIGH\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"HIGH\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/pypa/pip\", \"vendor\": \"Python Packaging Authority\", \"product\": \"pip\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"26.2\", \"versionType\": \"python\"}], \"collectionURL\": \"https://pypi.org/project/pip\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/pypa/pip/pull/14110\", \"tags\": [\"patch\"]}, {\"url\": \"https://mail.python.org/archives/list/security-announce@python.org/thread/L2BNQGGVQCEV7DROOORQ7WFKKFF2OOQX/\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.6.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.\\n\\n\\n\\n\\nThis vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"<div>pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.</div><div><br></div><div>This vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.</div>\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-36\", \"description\": \"CWE-36 Absolute path traversal\"}]}], \"providerMetadata\": {\"orgId\": \"28c92f92-d60d-412d-b760-e73465c3df22\", \"shortName\": \"PSF\", \"dateUpdated\": \"2026-07-29T18:36:26.726Z\"}}}", "cveMetadata": "{\"cveId\": \"CVE-2026-13346\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-29T20:21:34.281Z\", \"dateReserved\": \"2026-06-25T14:15:08.834Z\", \"assignerOrgId\": \"28c92f92-d60d-412d-b760-e73465c3df22\", \"datePublished\": \"2026-07-29T18:33:50.820Z\", \"assignerShortName\": \"PSF\"}", "dataType": "CVE_RECORD", "dataVersion": "5.2"}}}
