CVE-2025-71375 (GCVE-0-2025-71375)
Vulnerability from cvelistv5 – Published: 2026-07-04 01:23 – Updated: 2026-07-04 01:23
VLAI
Title
picklescan - Undetected Remote Code Execution via _operator.methodcaller
Summary
picklescan before 0.0.34 fails to detect the _operator.methodcaller built-in function when scanning pickle files for malicious code. Attackers can craft malicious pickle payloads using _operator.methodcaller that evade detection and execute arbitrary code when loaded by pickle.load().
Severity
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/mmaitre314/picklescan/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/picklescan-u… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| picklescan | picklescan |
Affected:
0 , < 0.0.34
(semver)
Unaffected: 0.0.34 (semver) |
Date Public
2025-12-27 00:00
Credits
{
"containers": {
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"packageURL": "pkg:pypi/picklescan",
"product": "picklescan",
"vendor": "picklescan",
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"status": "affected",
"version": "0",
"versionType": "semver"
},
{
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"version": "0.0.34",
"versionType": "semver"
}
]
}
],
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}
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"operator": "OR"
}
]
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"credits": [
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"type": "reporter",
"value": "CoolwindHF"
}
],
"datePublic": "2025-12-27T00:00:00.000Z",
"descriptions": [
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"value": "picklescan before 0.0.34 fails to detect the _operator.methodcaller built-in function when scanning pickle files for malicious code. Attackers can craft malicious pickle payloads using _operator.methodcaller that evade detection and execute arbitrary code when loaded by pickle.load()."
}
],
"metrics": [
{
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"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",
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"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",
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
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"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"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-04T01:23:42.157Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-955r-x9j8-7rhh)",
"tags": [
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],
"url": "https://github.com/mmaitre314/picklescan/security/advisories/GHSA-955r-x9j8-7rhh"
},
{
"name": "VulnCheck Advisory: picklescan - Undetected Remote Code Execution via _operator.methodcaller",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/picklescan-undetected-remote-code-execution-via-operator-methodcaller"
}
],
"title": "picklescan - Undetected Remote Code Execution via _operator.methodcaller",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2025-71375",
"datePublished": "2026-07-04T01:23:42.157Z",
"dateReserved": "2026-06-20T13:11:44.727Z",
"dateUpdated": "2026-07-04T01:23:42.157Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-71375",
"date": "2026-07-04",
"epss": "0.00365",
"percentile": "0.28486"
},
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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