Vulnerability-Lookup

PYSEC-2019-109

Vulnerability from pysec - Published: 2019-06-06 19:29 - Updated: 2019-07-05 11:15

Details

** DISPUTED ** A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because "the cache directory is not under control of the attacker in any common configuration."

Impacted products

Name	purl
parso	pkg:pypi/parso

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "parso",
        "purl": "pkg:pypi/parso"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.1",
        "0.0.2",
        "0.0.3",
        "0.0.4",
        "0.1.0",
        "0.1.1",
        "0.2.0",
        "0.2.1",
        "0.3.0",
        "0.3.1",
        "0.3.2",
        "0.3.3",
        "0.3.4",
        "0.4.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2019-12760",
    "GHSA-22mf-97vh-x8rw"
  ],
  "details": "** DISPUTED ** A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because \"the cache directory is not under control of the attacker in any common configuration.\"",
  "id": "PYSEC-2019-109",
  "modified": "2019-07-05T11:15:00Z",
  "published": "2019-06-06T19:29:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/davidhalter/parso/issues/75"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-22mf-97vh-x8rw"
    }
  ]
}

BREW-FDROIDSERVER-CVE-20… (PYSEC-2019-109)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:46 – Updated: 2026-08-13 16:46 – Source website

Details

References

URL

Type

	https://gist.github.com/dhondta/f71ae7e5c4234f8ed…	WEB
	https://github.com/davidhalter/parso/issues/75	REPORT
	https://github.com/advisories/GHSA-22mf-97vh-x8rw	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "parso",
        "resource_purl": "pkg:pypi/parso@0.8.7",
        "upstream_fixed_in": "0.5.0"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "fdroidserver",
        "purl": "pkg:brew/fdroidserver"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.5_4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/parso@0.8.7",
        "name": "parso",
        "resource": "parso",
        "strategy": "registry",
        "subject_version": "0.8.7"
      }
    ]
  },
  "details": "** DISPUTED ** A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because \"the cache directory is not under control of the attacker in any common configuration.\"",
  "id": "BREW-fdroidserver-CVE-2019-12760",
  "modified": "2026-08-13T16:46:32Z",
  "published": "2026-08-13T16:46:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/davidhalter/parso/issues/75"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-22mf-97vh-x8rw"
    }
  ],
  "schema_version": "1.7.3",
  "upstream": [
    "PYSEC-2019-109",
    "CVE-2019-12760",
    "GHSA-22mf-97vh-x8rw"
  ]
}

BREW-IPYTHON-CVE-2019-12760 (PYSEC-2019-109)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:00 – Updated: 2026-09-17 17:44 – Source website

Details

References

URL

Type

	https://gist.github.com/dhondta/f71ae7e5c4234f8ed…	WEB
	https://github.com/davidhalter/parso/issues/75	REPORT
	https://github.com/advisories/GHSA-22mf-97vh-x8rw	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "parso",
        "resource_purl": "pkg:pypi/parso@0.8.7",
        "upstream_fixed_in": "0.5.0"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "ipython",
        "purl": "pkg:brew/ipython"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.1"
            },
            {
              "fixed": "7.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/parso@0.8.7",
        "name": "parso",
        "resource": "parso",
        "strategy": "registry",
        "subject_version": "0.8.7"
      }
    ]
  },
  "details": "** DISPUTED ** A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because \"the cache directory is not under control of the attacker in any common configuration.\"",
  "id": "BREW-ipython-CVE-2019-12760",
  "modified": "2026-09-17T17:44:50Z",
  "published": "2026-08-13T17:00:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/davidhalter/parso/issues/75"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-22mf-97vh-x8rw"
    }
  ],
  "schema_version": "1.7.3",
  "upstream": [
    "PYSEC-2019-109",
    "CVE-2019-12760",
    "GHSA-22mf-97vh-x8rw"
  ]
}

CVE-2019-12760 (GCVE-0-2019-12760)

Vulnerability from cvelistv5 – Published: 2019-06-06 18:55 – Updated: 2024-08-04 23:32 Disputed

Summary

A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because "the cache directory is not under control of the attacker in any common configuration.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-11 20:34 UTC

CWE

Assigner

mitre mitre root Scorecard

References

2 references

URL	Tags
https://gist.github.com/dhondta/f71ae7e5c4234f8ed…	x_refsource_MISC
https://github.com/davidhalter/parso/issues/75	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 3.3,
              "baseSeverity": "LOW",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "HIGH",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2019-12760",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-11T20:34:09.413078Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-11T20:34:51.242Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T23:32:54.763Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/davidhalter/parso/issues/75"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because \"the cache directory is not under control of the attacker in any common configuration."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-07-05T10:34:12.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/davidhalter/parso/issues/75"
        }
      ],
      "tags": [
        "disputed"
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-12760",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "** DISPUTED ** A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because \"the cache directory is not under control of the attacker in any common configuration.\""
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7",
              "refsource": "MISC",
              "url": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"
            },
            {
              "name": "https://github.com/davidhalter/parso/issues/75",
              "refsource": "MISC",
              "url": "https://github.com/davidhalter/parso/issues/75"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-12760",
    "datePublished": "2019-06-06T18:55:03.000Z",
    "dateReserved": "2019-06-06T00:00:00.000Z",
    "dateUpdated": "2024-08-04T23:32:54.763Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-22MF-97VH-X8RW

Vulnerability from github – Published: 2019-06-13 16:12 – Updated: 2024-10-09 20:52

Withdrawn 2019-07-03

Summary

Deserialization vulnerability exists in parso

Details

Severity

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "parso"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-12760"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-06-13T15:48:35Z",
    "nvd_published_at": "2019-06-06T19:29:00Z",
    "severity": "HIGH"
  },
  "details": "** DISPUTED ** A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution.  NOTE: This is disputed because \"the cache directory is not under control of the attacker in any common configuration.\"",
  "id": "GHSA-22mf-97vh-x8rw",
  "modified": "2024-10-09T20:52:02Z",
  "published": "2019-06-13T16:12:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-12760"
    },
    {
      "type": "WEB",
      "url": "https://github.com/davidhalter/parso/issues/75"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-22mf-97vh-x8rw"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/davidhalter/parso"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/parso/PYSEC-2019-109.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Deserialization vulnerability exists in parso",
  "withdrawn": "2019-07-03T16:48:55Z"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

PYSEC-2019-109

BREW-FDROIDSERVER-CVE-20… (PYSEC-2019-109)

BREW-IPYTHON-CVE-2019-12760 (PYSEC-2019-109)

CVE-2019-12760 (GCVE-0-2019-12760)

GHSA-22MF-97VH-X8RW

Tags

Sightings

Nomenclature

Related by attack behaviour