GHSA-wcjx-v2wj-xg87: C2cciutils Denial of Service Vulnerability

HIGH
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CVSS 7.5
CWE-1395 CWE-674
Published
Advisory Summary

GHSA-wcjx-v2wj-xg87 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-1395: Dependency on Vulnerable Third-Party Component) affecting C2cciutils libraries in the PyPI ecosystem. The issue involves c2c ci utils is vulnerable to dos via pyasn dependency (cve-2026-30922). Remediation is available by upgrading affected packages to version 1.1.66.

GHSA-wcjx-v2wj-xg87 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-wcjx-v2wj-xg87
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-1395: Dependency on Vulnerable Third-Party Component
Affected Product C2cciutils
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

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

How to Fix GHSA-wcjx-v2wj-xg87

To remediate this vulnerability, upgrade all affected C2cciutils dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

c2cciutils fixed: 1.1.66 
pip install c2cciutils>=1.1.66
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 c2cciutils

How to Check if You Are Affected

To determine whether your Python environment is affected by GHSA-wcjx-v2wj-xg87, inspect your installed packages using pip:

pip show c2cciutils

Analyze the terminal output to locate any version of C2cciutils in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.1.66), your application is affected.

Note: The pip show c2cciutils command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1395: Dependency on Vulnerable Third-Party Component, where the product has a dependency on a third-party component that contains one or more known vulnerabilities. In C2cciutils, 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

Pin vulnerable version of pyasn, see: See: https://github.com/advisories/GHSA-jr27-m4p2-rc6r

GHSA-wcjx-v2wj-xg87 Affected C2cciutils Versions

1 component(s)
Fixed Versions:
1.1.66
Product / Package Ecosystem Affected Versions Fixed Version
c2cciutils
pypi/c2cciutils
PyPI
< 1.1.66
1.1.66

References

GitHub Advisory / Wiki ADVISORY
https://github.com/camptocamp/c2cciutils/security/advisories/GHSA-wcjx-v2wj-xg87
Security Fix Commit FIX COMMIT
https://github.com/camptocamp/c2cciutils/commit/1ab415014817d7d1cf09ad56cc8a7dec2a1108d8
C2cciutils Source Repository REPOSITORY
https://github.com/camptocamp/c2cciutils

Frequently Asked Questions

What is GHSA-wcjx-v2wj-xg87?
GHSA-wcjx-v2wj-xg87 is a security vulnerability in C2cciutils involving C2C CI utils is vulnerable to DoS via pyasn dependency (CVE-2026-30922) under CWE-1395: Dependency on Vulnerable Third-Party Component.
Which C2cciutils versions are affected?
Affected versions include releases prior to 1.1.66 across affected packages: c2cciutils.
What version fixes GHSA-wcjx-v2wj-xg87?
Upgrading to 1.1.66 (or the latest patched release for your respective branch) resolves the vulnerability.
Is c2cciutils affected?
Yes, c2cciutils is affected in releases prior to 1.1.66. Upgrade your dependency to 1.1.66 or later.
What is the CVSS score of GHSA-wcjx-v2wj-xg87?
GHSA-wcjx-v2wj-xg87 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with GHSA-wcjx-v2wj-xg87?
GHSA-wcjx-v2wj-xg87 is classified under CWE-1395: Dependency on Vulnerable Third-Party Component (The product has a dependency on a third-party component that contains one or more known vulnerabilities.).
How can I check PyPI dependencies for GHSA-wcjx-v2wj-xg87?
Run the dependency tree command: 'pip show c2cciutils'. 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-wcjx-v2wj-xg87",
  "modified" : "2026-03-26T22:27:12Z",
  "published" : "2026-03-26T22:27:12Z",
  "aliases" : [ ],
  "summary" : "C2C CI utils is vulnerable to DoS via pyasn dependency (CVE-2026-30922)",
  "details" : "Pin vulnerable version of pyasn, see: See: https://github.com/advisories/GHSA-jr27-m4p2-rc6r",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "c2cciutils"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.1.66"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 1.1.65"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/camptocamp/c2cciutils/security/advisories/GHSA-wcjx-v2wj-xg87"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/camptocamp/c2cciutils/commit/1ab415014817d7d1cf09ad56cc8a7dec2a1108d8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/camptocamp/c2cciutils"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1395", "CWE-674" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-26T22:27:12Z",
    "nvd_published_at" : null
  }
}