CVE-2021-32837
high · 7.5mechanize, a library for automatically interacting with HTTP web servers, contains a regular expression that is vulnerable to regular expression denial of service (ReDoS) prior to version 0.4.6. If a web server responds in a malicious way, then mechanize could crash. Version 0.4.6 has a patch for the issue.
7.5
CVSS
28.9%
EPSS (exploit prob.)
98th
EPSS percentile
2023-01-17
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-1333
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| mechanize_project | mechanize | < 0.4.6 |
Check a specific version with /api/v1/cve/match.
References
- https://github.com/python-mechanize/mechanize/blob/3acb1836f3fd8edc5a758a417dd46b53832ae3b5/mechanize/_urllib2_fork.py#L878-L879
- https://github.com/python-mechanize/mechanize/commit/dd05334448e9f39814bab044d2eaa5ef69b410d6
- https://github.com/python-mechanize/mechanize/releases/tag/v0.4.6
- https://lists.debian.org/debian-lts-announce/2023/06/msg00022.html
- https://securitylab.github.com/advisories/GHSL-2021-108-python-mechanize-mechanize/
- https://github.com/python-mechanize/mechanize/blob/3acb1836f3fd8edc5a758a417dd46b53832ae3b5/mechanize/_urllib2_fork.py#L878-L879
- https://github.com/python-mechanize/mechanize/commit/dd05334448e9f39814bab044d2eaa5ef69b410d6
- https://github.com/python-mechanize/mechanize/releases/tag/v0.4.6
- https://lists.debian.org/debian-lts-announce/2023/06/msg00022.html
- https://lists.debian.org/debian-lts-announce/2025/12/msg00028.html
- https://securitylab.github.com/advisories/GHSL-2021-108-python-mechanize-mechanize/
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2021-32837