CVSS 3.1
6.1 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2018-25091
Medium (6.1) in python urllib3. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in urllib3 1.24.2.
urllib3 before 1.24.2 does not remove the authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the authorization header to be exposed to unintended hosts or transmitted in cleartext. NOTE: this issue exists because of an incomplete fix for CVE-2018-20060 (which was case-sensitive).
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
- CWE
- CWE-601
- Published
- Modified
- Record from
- the NVD, synced
Affected
- python:urllib3
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-gwvm-45gx-3cf8 | PyPI | urllib3 | <1.24.2 | 1.24.2 |
| PYSEC-2023-207 | PyPI | urllib3 | <1.24.2 | 1.24.2 |
References
- https://github.com/urllib3/urllib3/commit/adb358f8e06865406d1f05e581a16cbea2136fbc
- https://github.com/urllib3/urllib3/compare/1.24.1...1.24.2
- https://github.com/urllib3/urllib3/issues/1510
- https://github.com/urllib3/urllib3/commit/adb358f8e06865406d1f05e581a16cbea2136fbc
- https://github.com/urllib3/urllib3/compare/1.24.1...1.24.2