docusign-esign-python-client
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docusign
Security Issue: Cannot Mitigate CVE-2025-66471 Due to urllib3 v2.6.0 Incompatibility
Security Issue: Cannot Mitigate CVE-2025-66471 Due to urllib3 v2.6.0 Incompatibility
Critical Problem
The docusign-esign library is currently unable to mitigate CVE-2025-66471 because it is incompatible with urllib3 v2.6.0+, which is the version that fixes this vulnerability.
Vulnerability Details
- CVE ID: CVE-2025-66471
- Affected Versions: urllib3 < 2.6.0
- Severity: CRITICAL/HIGH
- Fixed In: urllib3 2.6.0+
- Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-66471
The Incompatibility Problem
urllib3 v2.6.0 removed deprecated methods that docusign-esign depends on, making it impossible to simply update the version constraint. The library currently relies on deprecated urllib3 APIs that no longer exist in v2.6.0+.
This creates a security deadlock:
- ❌ Cannot use urllib3 < 2.6.0 → Vulnerable to CVE-2025-66471
- ❌ Cannot use urllib3 >= 2.6.0 → Incompatible due to removed deprecated methods
- ⚠️ Result: Users are forced to use vulnerable urllib3 versions
Impact on Users
- 🚨 All users are exposed to CVE-2025-66471 with no mitigation path
- 🚨 Security scanners will flag this vulnerability in production environments
- 🚨 Compliance and audit failures for organizations using this library
- 🚨 Cannot pass security reviews for new deployments
Root Cause
The docusign-esign library uses deprecated urllib3 methods that were removed in v2.6.0. This prevents updating to secure urllib3 versions.
