Vulnerability-Lookup

PYSEC-2026-1811

Vulnerability from pysec - Published: 2026-07-07 11:45 - Updated: 2026-07-07 17:25

Details

PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.

Severity

5.3 (Medium)


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

7.1 (High)


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

Impacted products

Name	purl
pycryptodome	pkg:pypi/pycryptodome

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pycryptodome",
        "purl": "pkg:pypi/pycryptodome"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.19.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0",
        "3.0rc1",
        "3.1",
        "3.10.1",
        "3.10.3",
        "3.10.4",
        "3.11.0",
        "3.12.0",
        "3.13.0",
        "3.14.0",
        "3.14.1",
        "3.15.0",
        "3.16.0",
        "3.17",
        "3.18.0",
        "3.19.0",
        "3.2",
        "3.2.1",
        "3.3",
        "3.3.1",
        "3.4",
        "3.4.11",
        "3.4.3",
        "3.4.4",
        "3.4.5",
        "3.4.6",
        "3.4.7",
        "3.4.8",
        "3.4.9",
        "3.5.0",
        "3.5.1",
        "3.6.0",
        "3.6.1",
        "3.6.3",
        "3.6.4",
        "3.6.5",
        "3.6.6",
        "3.7.0",
        "3.7.1",
        "3.7.2",
        "3.7.3",
        "3.8.0",
        "3.8.1",
        "3.8.2",
        "3.9.0",
        "3.9.1",
        "3.9.2",
        "3.9.3",
        "3.9.4",
        "3.9.6",
        "3.9.7",
        "3.9.8",
        "3.9.9"
      ]
    }
  ],
  "aliases": [
    "CVE-2023-52323",
    "GHSA-j225-cvw7-qrx7"
  ],
  "details": "PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.",
  "id": "PYSEC-2026-1811",
  "modified": "2026-07-07T17:25:10.229266Z",
  "published": "2026-07-07T11:45:29.466835Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52323"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Legrandin/pycryptodome/commit/0deea1bfe1489e8c80d2053bbb06a1aa0b181ebd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Legrandin/pycryptodome"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Legrandin/pycryptodome/blob/master/Changelog.rst"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pycryptodomex/PYSEC-2024-3.yaml"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/pycryptodomex/#history"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/pycryptodome"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-j225-cvw7-qrx7"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "PyCryptodome and pycryptodomex side-channel leakage for OAEP decryption"
}

CVE-2023-52323 (GCVE-0-2023-52323)

Vulnerability from cvelistv5 – Published: 2024-01-05 00:00 – Updated: 2025-06-03 14:41

Summary

PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

n/a
CWE-203 - Observable Discrepancy

Assigner

mitre

References

2 references

URL	Tags
https://github.com/Legrandin/pycryptodome/blob/ma…
https://pypi.org/project/pycryptodomex/#history

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T22:55:41.659Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/Legrandin/pycryptodome/blob/master/Changelog.rst"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pypi.org/project/pycryptodomex/#history"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-52323",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-08T17:36:55.525786Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-203",
                "description": "CWE-203 Observable Discrepancy",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-03T14:41:53.536Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-01-05T03:24:28.019Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/Legrandin/pycryptodome/blob/master/Changelog.rst"
        },
        {
          "url": "https://pypi.org/project/pycryptodomex/#history"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-52323",
    "datePublished": "2024-01-05T00:00:00.000Z",
    "dateReserved": "2024-01-05T00:00:00.000Z",
    "dateUpdated": "2025-06-03T14:41:53.536Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-J225-CVW7-QRX7

Vulnerability from github – Published: 2024-01-05 06:30 – Updated: 2024-10-21 20:52

Summary

PyCryptodome and pycryptodomex side-channel leakage for OAEP decryption

Details

PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.

Severity

5.3 (Medium)


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

7.1 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pycryptodomex"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.19.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pycryptodome"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.19.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-52323"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-01-05T17:25:46Z",
    "nvd_published_at": "2024-01-05T04:15:07Z",
    "severity": "HIGH"
  },
  "details": "PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.",
  "id": "GHSA-j225-cvw7-qrx7",
  "modified": "2024-10-21T20:52:14Z",
  "published": "2024-01-05T06:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52323"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Legrandin/pycryptodome/commit/0deea1bfe1489e8c80d2053bbb06a1aa0b181ebd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Legrandin/pycryptodome"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Legrandin/pycryptodome/blob/master/Changelog.rst"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pycryptodomex/PYSEC-2024-3.yaml"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/pycryptodomex/#history"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "PyCryptodome and pycryptodomex side-channel leakage for OAEP decryption"
}

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.

Action not permitted

PYSEC-2026-1811

CVE-2023-52323 (GCVE-0-2023-52323)

GHSA-J225-CVW7-QRX7

Tags

Sightings

Nomenclature