{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71343", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-06-20T12:48:06.735Z", "datePublished": "2026-07-04T01:23:32.430Z", "dateUpdated": "2026-07-04T01:23:32.430Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-04T01:23:32.430Z"}, "datePublic": "2025-08-26T00:00:00.000Z", "title": "picklescan - Arbitrary Code Execution via lib2to3.pgen2.pgen.ParserGenerator.make_label Detection Bypass", "descriptions": [{"lang": "en", "value": "picklescan before 0.0.30 fails to detect malicious pickle files that exploit lib2to3.pgen2.pgen.ParserGenerator.make_label function in the reduce method. Attackers can craft malicious pickle files with embedded code that evades detection but executes arbitrary commands when pickle.load() is called."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Deserialization of Untrusted Data", "cweId": "CWE-502", "type": "CWE"}]}], "affected": [{"vendor": "picklescan", "product": "picklescan", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/picklescan", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "0.0.30"}, {"version": "0.0.30", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:mmaitre314:picklescan:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.0.30"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 7.6, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "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:N", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://github.com/mmaitre314/picklescan/security/advisories/GHSA-p9w7-82w4-7q8m", "name": "GitHub Security Advisory (GHSA-p9w7-82w4-7q8m)", "tags": ["vendor-advisory"]}, {"name": "VulnCheck Advisory: picklescan - Arbitrary Code Execution via lib2to3.pgen2.pgen.ParserGenerator.make_label Detection Bypass", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-lib2to3-pgen2-pgen-parsergenerator-make-label-detection-bypass"}], "credits": [{"lang": "en", "value": "FredericDT", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.0.30)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0.0.30,*]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "picklescan", "vendor": "mmaitre314"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.0.30)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0.0.30,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "picklescan", "source": "cna", "vendor": "picklescan"}, "product": "picklescan", "vendor": "picklescan"}], "created": "2026-07-04T02:30:04.194472+00:00", "updated": "2026-07-04T02:30:04.194498+00:00", "vendors": ["mmaitre314", "mmaitre314$PRODUCT$picklescan", "picklescan", "picklescan$PRODUCT$picklescan"]}