CVE-2018-25091: Infoleak
First published: Sun Oct 15 2023(Updated: )
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).
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/urllib3 | <1.24.2 | 1.24.2 |
| Python urllib3 | <1.24.2 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2018-25091
- 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
- https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-207.yaml
- https://github.com/advisories/GHSA-gwvm-45gx-3cf8 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2018-25091?
The severity of CVE-2018-25091 is medium.
How does CVE-2018-25091 affect urllib3 before version 1.24.2?
CVE-2018-25091 allows for credentials in the authorization header to be exposed to unintended hosts or transmitted in cleartext.
How can I fix CVE-2018-25091 in urllib3?
To fix CVE-2018-25091, you need to upgrade urllib3 to version 1.24.2 or higher.
Where can I find more information about CVE-2018-25091?
You can find more information about CVE-2018-25091 at the following links: [NIST NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-25091), [GitHub Issue](https://github.com/urllib3/urllib3/issues/1510), [GitHub Commit](https://github.com/urllib3/urllib3/commit/adb358f8e06865406d1f05e581a16cbea2136fbc).
- collector/github-advisory-latest
- alias/GHSA-gwvm-45gx-3cf8
- alias/CVE-2018-25091
- collector/nvd-api
- collector/nvd-index
- collector/github-advisory
- collector/nvd-cve
- agent/weakness
- agent/author
- agent/tags
- agent/type
- agent/description
- agent/severity
- agent/references
- agent/event
- agent/last-modified-date
- agent/remedy
- agent/softwarecombine
- agent/first-publish-date
- package-manager/pip
- vendor/python
- canonical/python urllib3