{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23939", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-01-19T14:23:14.343Z", "datePublished": "2026-02-26T19:41:18.762Z", "dateUpdated": "2026-02-26T20:24:24.772Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:hexpm:hexpm:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Hexpm.Store.Local'"], "packageName": "hexpm/hexpm", "packageURL": "pkg:github/hexpm/hexpm", "product": "hexpm", "programFiles": ["lib/hexpm/store/local.ex"], "programRoutines": [{"name": "'Elixir.Hexpm.Store.Local':get/3"}, {"name": "'Elixir.Hexpm.Store.Local':put/4"}, {"name": "'Elixir.Hexpm.Store.Local':delete/2"}, {"name": "'Elixir.Hexpm.Store.Local':delete_many/2"}], "repo": "https://github.com/hexpm/hexpm.git", "vendor": "hexpm", "versions": [{"lessThan": "5d2ccd2f14f45a63225a73fb5b1c937baf36fdc0", "status": "affected", "version": "931ee0ed46fa89218e0400a4f6e6d15f96406050", "versionType": "git"}, {"lessThan": "pkg:github/hexpm/hexpm@5d2ccd2f14f45a63225a73fb5b1c937baf36fdc0", "status": "affected", "version": "pkg:github/hexpm/hexpm@931ee0ed46fa89218e0400a4f6e6d15f96406050", "versionType": "purl"}]}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:hexpm:hexpm:*:*:*:*:*:*:*:*", "versionEndExcluding": "5d2ccd2f14f45a63225a73fb5b1c937baf36fdc0", "versionStartIncluding": "931ee0ed46fa89218e0400a4f6e6d15f96406050", "vulnerable": true}], "negate": false, "operator": "AND"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "finder", "value": "Michael Lubas / Paraxial.io"}, {"lang": "en", "type": "remediation developer", "value": "Jonatan M\u00e4nnchen / EEF"}, {"lang": "en", "type": "remediation reviewer", "value": "Eric Meadows-J\u00f6nsson / Hex.pm"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in hexpm hexpm/hexpm ('Elixir.Hexpm.Store.Local' module) allows Relative Path Traversal.<p>This vulnerability is associated with program files <tt>lib/hexpm/store/local.ex</tt> and program routines <tt>'Elixir.Hexpm.Store.Local':get/3</tt>, <tt>'Elixir.Hexpm.Store.Local':put/4</tt>, <tt>'Elixir.Hexpm.Store.Local':delete/2</tt>, <tt>'Elixir.Hexpm.Store.Local':delete_many/2</tt>.</p><p>This issue does NOT affect hex.pm the service. 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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in hexpm hexpm/hexpm ('Elixir.Hexpm.Store.Local' module) allows Relative Path Traversal. This vulnerability is associated with program files lib/hexpm/store/local.ex and program routines 'Elixir.Hexpm.Store.Local':get/3, 'Elixir.Hexpm.Store.Local':put/4, 'Elixir.Hexpm.Store.Local':delete/2, 'Elixir.Hexpm.Store.Local':delete_many/2.\n\nThis issue does NOT affect hex.pm the service. Only self-hosted deployments using the Local Storage backend are affected.\n\nThis issue affects hexpm: from 931ee0ed46fa89218e0400a4f6e6d15f96406050 before 5d2ccd2f14f45a63225a73fb5b1c937baf36fdc0."}], "id": "CVE-2026-23939", "lastModified": "2026-02-26T20:31:35.763", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}, "published": "2026-02-26T20:31:35.763", "references": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/hexpm/hexpm/commit/5d2ccd2f14f45a63225a73fb5b1c937baf36fdc0"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/hexpm/hexpm/security/advisories/GHSA-42mv-r64p-4869"}], "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}

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