Description
Versions 1.17 and 1.18 of the Python urllib3 library suffer from a vulnerability that can cause them, in certain configurations, to not correctly validate TLS certificates. This places users of the library with those configurations at risk of man-in-the-middle and information leakage attacks. This vulnerability affects users using versions 1.17 and 1.18 of the urllib3 library, who are using the optional PyOpenSSL support for TLS instead of the regular standard library TLS backend, and who are using OpenSSL 1.1.0 via PyOpenSSL. This is an extremely uncommon configuration, so the security impact of this vulnerability is low.
No analysis available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2017-0139 | Versions 1.17 and 1.18 of the Python urllib3 library suffer from a vulnerability that can cause them, in certain configurations, to not correctly validate TLS certificates. This places users of the library with those configurations at risk of man-in-the-middle and information leakage attacks. This vulnerability affects users using versions 1.17 and 1.18 of the urllib3 library, who are using the optional PyOpenSSL support for TLS instead of the regular standard library TLS backend, and who are using OpenSSL 1.1.0 via PyOpenSSL. This is an extremely uncommon configuration, so the security impact of this vulnerability is low. |
Github GHSA |
GHSA-v4w5-p2hg-8fh6 | Urllib3 Incorrect Certificate Validation |
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-06T02:35:02.302Z
Reserved: 2016-10-25T00:00:00.000Z
Link: CVE-2016-9015
No data.
Status : Modified
Published: 2017-01-11T16:59:00.347
Modified: 2026-05-06T22:30:45.220
Link: CVE-2016-9015
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Github GHSA