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4 vulnerabilities found for fickling by trailofbits

CVE-2025-67747 (GCVE-0-2025-67747)

Vulnerability from nvd – Published: 2025-12-16 00:32 – Updated: 2025-12-16 20:05
VLAI?
Title
Fickling has missing detection for marshal.loads and types.FunctionType in unsafe modules list
Summary
Fickling is a Python pickling decompiler and static analyzer. Versions prior to 0.1.6 are missing `marshal` and `types` from the block list of unsafe module imports. Fickling started blocking both modules to address this issue. This allows an attacker to craft a malicious pickle file that can bypass fickling since it misses detections for `types.FunctionType` and `marshal.loads`. A user who deserializes such a file, believing it to be safe, would inadvertently execute arbitrary code on their system. This impacts any user or system that uses Fickling to vet pickle files for security issues. The issue was fixed in version 0.1.6.
Severity ?
7.1 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
trailofbits fickling Affected: < 0.1.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-67748 (GCVE-0-2025-67748)

Vulnerability from nvd – Published: 2025-12-16 00:39 – Updated: 2025-12-16 21:12
VLAI?
Title
Fickling has Code Injection vulnerability via pty.spawn()
Summary
Fickling is a Python pickling decompiler and static analyzer. Versions prior to 0.1.6 had a bypass caused by `pty` missing from the block list of unsafe module imports. This led to unsafe pickles based on `pty.spawn()` being incorrectly flagged as `LIKELY_SAFE`, and was fixed in version 0.1.6. This impacted any user or system that used Fickling to vet pickle files for security issues.
Severity ?
7.1 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
  • CWE-502 - Deserialization of Untrusted Data
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
trailofbits fickling Affected: < 0.1.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-67748 (GCVE-0-2025-67748)

Vulnerability from cvelistv5 – Published: 2025-12-16 00:39 – Updated: 2025-12-16 21:12
VLAI?
Title
Fickling has Code Injection vulnerability via pty.spawn()
Summary
Fickling is a Python pickling decompiler and static analyzer. Versions prior to 0.1.6 had a bypass caused by `pty` missing from the block list of unsafe module imports. This led to unsafe pickles based on `pty.spawn()` being incorrectly flagged as `LIKELY_SAFE`, and was fixed in version 0.1.6. This impacted any user or system that used Fickling to vet pickle files for security issues.
Severity ?
7.1 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
  • CWE-502 - Deserialization of Untrusted Data
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
trailofbits fickling Affected: < 0.1.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-67747 (GCVE-0-2025-67747)

Vulnerability from cvelistv5 – Published: 2025-12-16 00:32 – Updated: 2025-12-16 20:05
VLAI?
Title
Fickling has missing detection for marshal.loads and types.FunctionType in unsafe modules list
Summary
Fickling is a Python pickling decompiler and static analyzer. Versions prior to 0.1.6 are missing `marshal` and `types` from the block list of unsafe module imports. Fickling started blocking both modules to address this issue. This allows an attacker to craft a malicious pickle file that can bypass fickling since it misses detections for `types.FunctionType` and `marshal.loads`. A user who deserializes such a file, believing it to be safe, would inadvertently execute arbitrary code on their system. This impacts any user or system that uses Fickling to vet pickle files for security issues. The issue was fixed in version 0.1.6.
Severity ?
7.1 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
trailofbits fickling Affected: < 0.1.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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          "name": "https://github.com/trailofbits/fickling/pull/186",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/trailofbits/fickling/pull/186"
        },
        {
          "name": "https://github.com/trailofbits/fickling/commit/4e34561301bda1450268d1d7b0b2b151de33b913",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/trailofbits/fickling/commit/4e34561301bda1450268d1d7b0b2b151de33b913"
        },
        {
          "name": "https://github.com/trailofbits/fickling/releases/tag/v0.1.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/trailofbits/fickling/releases/tag/v0.1.6"
        }
      ],
      "source": {
        "advisory": "GHSA-565g-hwwr-4pp3",
        "discovery": "UNKNOWN"
      },
      "title": "Fickling has missing detection for marshal.loads and types.FunctionType in unsafe modules list"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-67747",
    "datePublished": "2025-12-16T00:32:52.714Z",
    "dateReserved": "2025-12-11T18:08:02.947Z",
    "dateUpdated": "2025-12-16T20:05:35.742Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}