CVE-2026-44431
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- CVE-2026-44431
CVE Details
| Release Date: | 2026-05-13 | |
| Impact: | Moderate | What is this? |
Description
urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects followed from the low-level API via ProxyManager.connection_from_url().urlopen(..., assert_same_host=False) still forward these sensitive headers. This vulnerability is fixed in 2.7.0.
See more information about CVE-2026-44431 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 5.9 |
| Vector String: | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Version: | 3.1 |
| Attack Vector: | Network |
| Attack Complexity: | High |
| Privileges Required: | None |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | High |
| Integrity Impact: | None |
| Availability Impact: | None |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 9 (python-urllib3) | ELSA-2026-28158 | 2026-06-24 |
| Oracle Linux version 9 (python3.12-urllib3) | ELSA-2026-28159 | 2026-06-23 |
| Oracle Linux version 9 (python3.14-urllib3) | ELSA-2026-28157 | 2026-06-23 |
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