Vulnerabilities in pkg:pypi/cryptidy

PACKAGE
Advisory Identifier: GHSA-97w9-v595-3h5q
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Advisory Summary

CVE-2025-63675 is a MODERATE (CVSS 6.9) cryptidy allows code execution vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Cryptidy libraries in the PyPI ecosystem. The issue involves cryptidy allows code execution via untrusted data due to pickle.loads. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:pypi/cryptidy

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:pypi/cryptidy. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-97w9-v595-3h5q CVE-2025-63675 MODERATE cryptidy allows code execution via untrusted data due to pickle.loads

CVE-2025-63675 at a Glance

CVE Identifier CVE-2025-63675
GHSA Identifier GHSA-97w9-v595-3h5q
Severity MODERATE
CVSS v3.1 Base Score 6.9
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Cryptidy
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L).

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability Low (A:L)

How to Fix CVE-2025-63675

To remediate this vulnerability, upgrade all affected Cryptidy dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

cryptidy fixed: Latest secure release 
pip install cryptidy>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show cryptidy

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-63675, inspect your installed packages using pip:

pip show cryptidy

Analyze the terminal output to locate any version of Cryptidy in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show cryptidy command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Cryptidy, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

cryptidy through 1.2.4 allows code execution via untrusted data because pickle.loads is used. This occurs in aes_decrypt_message in symmetric_encryption.py.

CVE-2025-63675 Affected Cryptidy Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
cryptidy
pypi/cryptidy
PyPI
≤ 1.2.4

References

NVD — CVE-2025-63675 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-63675
Cryptidy Source Repository REPOSITORY
https://github.com/javiermorales36/cryptidy-analysis
Cryptidy Source Repository REPOSITORY
https://github.com/netinvent/cryptidy
Cryptidy Source Repository REPOSITORY
https://github.com/netinvent/cryptidy/blob/cebc9ffd54cc20679d15a1a43ca9a5da645b0c58/cryptidy/symmetric_encryption.py#L220-L238

Frequently Asked Questions

What is CVE-2025-63675?
CVE-2025-63675 is a security vulnerability in Cryptidy involving cryptidy allows code execution via untrusted data due to pickle.loads under CWE-502: Deserialization of Untrusted Data.
Which Cryptidy versions are affected?
Affected versions include releases prior to current release patches across affected packages: cryptidy.
What version fixes CVE-2025-63675?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is cryptidy affected?
Yes, cryptidy is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2025-63675?
CVE-2025-63675 has a CVSS v3.1 base score of 6.9 (MODERATE) with vector string CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.
What CWE is associated with CVE-2025-63675?
CVE-2025-63675 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check PyPI dependencies for CVE-2025-63675?
Run the dependency tree command: 'pip show cryptidy'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-97w9-v595-3h5q",
  "modified" : "2025-10-31T17:56:11Z",
  "published" : "2025-10-31T09:30:25Z",
  "aliases" : [ "CVE-2025-63675" ],
  "summary" : "cryptidy allows code execution via untrusted data due to pickle.loads ",
  "details" : "cryptidy through 1.2.4 allows code execution via untrusted data because pickle.loads is used. This occurs in aes_decrypt_message in symmetric_encryption.py.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "cryptidy"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.2.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-63675"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/javiermorales36/cryptidy-analysis"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/netinvent/cryptidy"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/netinvent/cryptidy/blob/cebc9ffd54cc20679d15a1a43ca9a5da645b0c58/cryptidy/symmetric_encryption.py#L220-L238"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-31T17:56:11Z",
    "nvd_published_at" : "2025-10-31T07:15:38Z"
  }
}