Vulnerability-Lookup

PYSEC-2022-301

Vulnerability from pysec - Published: 2022-10-06 18:16 - Updated: 2022-10-06 20:46

Details

dparse is a parser for Python dependency files. dparse in versions before 0.5.2 contain a regular expression that is vulnerable to a Regular Expression Denial of Service. All the users parsing index server URLs with dparse are impacted by this vulnerability. A patch has been applied in version 0.5.2, all the users are advised to upgrade to 0.5.2 as soon as possible. Users unable to upgrade should avoid passing index server URLs in the source file to be parsed.

Impacted products

Name	purl
dparse	pkg:pypi/dparse

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "dparse",
        "purl": "pkg:pypi/dparse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8c990170bbd6c0cf212f1151e9025486556062d5"
            },
            {
              "fixed": "d87364f9db9ab916451b1b036cfeb039e726e614"
            }
          ],
          "repo": "https://github.com/pyupio/dparse",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.0",
        "0.1.1",
        "0.2.0",
        "0.2.1",
        "0.3.0",
        "0.4.0",
        "0.4.1",
        "0.5.0",
        "0.5.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2022-39280",
    "GHSA-8fg9-p83m-x5pq"
  ],
  "details": "dparse is a parser for Python dependency files. dparse in versions before 0.5.2 contain a regular expression that is vulnerable to a Regular Expression Denial of Service. All the users parsing index server URLs with dparse are impacted by this vulnerability. A patch has been applied in version `0.5.2`, all the users are advised to upgrade to `0.5.2` as soon as possible. Users unable to upgrade should avoid passing index server URLs in the source file to be parsed.",
  "id": "PYSEC-2022-301",
  "modified": "2022-10-06T20:46:42.790036Z",
  "published": "2022-10-06T18:16:00Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5"
    },
    {
      "type": "WEB",
      "url": "https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS"
    },
    {
      "type": "FIX",
      "url": "https://github.com/pyupio/dparse/commit/d87364f9db9ab916451b1b036cfeb039e726e614"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pyupio/dparse/security/advisories/GHSA-8fg9-p83m-x5pq"
    }
  ]
}

BREW-SAFETY-CVE-2022-39280 (GHSA-8FG9-P83M-X5PQ)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:33 – Updated: 2026-09-10 01:10 – Source website

Summary

ReDoS issue in dparse

Details

Impact

dparse versions prior to 0.5.1 contain a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service).

All users parsing index server URLs with dparse are impacted by this vulnerability.

Patches

The Patch is applied in the 0.5.2 version, all users are recommended to upgrade as soon as possible.

Workarounds

Avoid passing index server URLs in the source file to be parsed.

References

https://github.com/pyupio/dparse/tree/security/remove-intensive-regex

For more information

If you have any questions or comments about this advisory: * Email us at support@pyup.io

Severity

5.9 (Medium)


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

8.2 (High)


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

References

URL

Type

	https://github.com/pyupio/dparse/security/advisor…	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2022-39280	ADVISORY
	https://github.com/pyupio/dparse/commit/8c990170b…	WEB
	https://github.com/pyupio/dparse/commit/d87364f9d…	WEB
	https://github.com/pypa/advisory-database/tree/ma…	WEB
	https://github.com/pyupio/dparse	PACKAGE
	https://owasp.org/www-community/attacks/Regular_e…	WEB

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "dparse",
        "resource_purl": "pkg:pypi/dparse@0.6.4",
        "upstream_fixed_in": "0.5.2"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "safety",
        "purl": "pkg:brew/safety"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.8.1_1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/dparse@0.6.4",
        "name": "dparse",
        "resource": "dparse",
        "strategy": "registry",
        "subject_version": "0.6.4"
      }
    ]
  },
  "details": "### Impact\ndparse versions prior to 0.5.1 contain a regular expression that is vulnerable to [ReDoS](https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS) (Regular Expression Denial of Service).\n\nAll users parsing index server URLs with dparse are impacted by this vulnerability.\n\n### Patches\nThe Patch is applied in the `0.5.2` version, all users are recommended to upgrade as soon as possible.\n\n### Workarounds\nAvoid passing index server URLs in the source file to be parsed.\n\n### References\n[https://github.com/pyupio/dparse/tree/security/remove-intensive-regex](https://github.com/pyupio/dparse/tree/security/remove-intensive-regex)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at [support@pyup.io](mailto:support@pyup.io)\n",
  "id": "BREW-safety-CVE-2022-39280",
  "modified": "2026-09-10T01:10:54Z",
  "published": "2026-08-13T17:33:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pyupio/dparse/security/advisories/GHSA-8fg9-p83m-x5pq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39280"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pyupio/dparse/commit/d87364f9db9ab916451b1b036cfeb039e726e614"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/dparse/PYSEC-2022-301.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pyupio/dparse"
    },
    {
      "type": "WEB",
      "url": "https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ReDoS issue in dparse",
  "upstream": [
    "GHSA-8fg9-p83m-x5pq",
    "CVE-2022-39280",
    "PYSEC-2022-301"
  ]
}

CVE-2022-39280 (GCVE-0-2022-39280)

Vulnerability from cvelistv5 – Published: 2022-10-06 00:00 – Updated: 2025-04-23 16:52

Title

Regular expression denial of service in dparse

Summary

dparse is a parser for Python dependency files. dparse in versions before 0.5.2 contain a regular expression that is vulnerable to a Regular Expression Denial of Service. All the users parsing index server URLs with dparse are impacted by this vulnerability. A patch has been applied in version `0.5.2`, all the users are advised to upgrade to `0.5.2` as soon as possible. Users unable to upgrade should avoid passing index server URLs in the source file to be parsed.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:56 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://owasp.org/www-community/attacks/Regular_e…
https://github.com/pyupio/dparse/security/advisor…
https://github.com/pyupio/dparse/commit/8c990170b…
https://github.com/pyupio/dparse/commit/d87364f9d…

Impacted products

1 product

Vendor	Product	Version
pyupio	dparse	Affected: < 0.5.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:00:43.472Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/pyupio/dparse/security/advisories/GHSA-8fg9-p83m-x5pq"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/pyupio/dparse/commit/d87364f9db9ab916451b1b036cfeb039e726e614"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-39280",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T13:56:40.078850Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T16:52:14.285Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "dparse",
          "vendor": "pyupio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.5.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "dparse is a parser for Python dependency files. dparse in versions before 0.5.2 contain a regular expression that is vulnerable to a Regular Expression Denial of Service. All the users parsing index server URLs with dparse are impacted by this vulnerability. A patch has been applied in version `0.5.2`, all the users are advised to upgrade to `0.5.2` as soon as possible. Users unable to upgrade should avoid passing index server URLs in the source file to be parsed."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-11T00:00:00.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "url": "https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS"
        },
        {
          "url": "https://github.com/pyupio/dparse/security/advisories/GHSA-8fg9-p83m-x5pq"
        },
        {
          "url": "https://github.com/pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5"
        },
        {
          "url": "https://github.com/pyupio/dparse/commit/d87364f9db9ab916451b1b036cfeb039e726e614"
        }
      ],
      "source": {
        "advisory": "GHSA-8fg9-p83m-x5pq",
        "discovery": "UNKNOWN"
      },
      "title": "Regular expression denial of service in dparse"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-39280",
    "datePublished": "2022-10-06T00:00:00.000Z",
    "dateReserved": "2022-09-02T00:00:00.000Z",
    "dateUpdated": "2025-04-23T16:52:14.285Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-8FG9-P83M-X5PQ

Vulnerability from github – Published: 2022-09-27 15:28 – Updated: 2024-11-18 16:26

Summary

ReDoS issue in dparse

Details

Impact

dparse versions prior to 0.5.1 contain a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service).

All users parsing index server URLs with dparse are impacted by this vulnerability.

Patches

The Patch is applied in the 0.5.2 version, all users are recommended to upgrade as soon as possible.

Workarounds

Avoid passing index server URLs in the source file to be parsed.

References

https://github.com/pyupio/dparse/tree/security/remove-intensive-regex

For more information

If you have any questions or comments about this advisory: * Email us at support@pyup.io

Severity

5.9 (Medium)


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

8.2 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "dparse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-39280"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-09-27T15:28:00Z",
    "nvd_published_at": "2022-10-06T18:16:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\ndparse versions prior to 0.5.1 contain a regular expression that is vulnerable to [ReDoS](https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS) (Regular Expression Denial of Service).\n\nAll users parsing index server URLs with dparse are impacted by this vulnerability.\n\n### Patches\nThe Patch is applied in the `0.5.2` version, all users are recommended to upgrade as soon as possible.\n\n### Workarounds\nAvoid passing index server URLs in the source file to be parsed.\n\n### References\n[https://github.com/pyupio/dparse/tree/security/remove-intensive-regex](https://github.com/pyupio/dparse/tree/security/remove-intensive-regex)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at [support@pyup.io](mailto:support@pyup.io)\n",
  "id": "GHSA-8fg9-p83m-x5pq",
  "modified": "2024-11-18T16:26:27Z",
  "published": "2022-09-27T15:28:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pyupio/dparse/security/advisories/GHSA-8fg9-p83m-x5pq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39280"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pyupio/dparse/commit/d87364f9db9ab916451b1b036cfeb039e726e614"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/dparse/PYSEC-2022-301.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pyupio/dparse"
    },
    {
      "type": "WEB",
      "url": "https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ReDoS issue in dparse"
}

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.

Detection rules are retrieved from Rulezet.

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-2022-301

BREW-SAFETY-CVE-2022-39280 (GHSA-8FG9-P83M-X5PQ)

Impact

Patches

Workarounds

References

For more information

CVE-2022-39280 (GCVE-0-2022-39280)

GHSA-8FG9-P83M-X5PQ

Impact

Patches

Workarounds

References

For more information

Tags

Sightings

Nomenclature

Related by attack behaviour