CVE-2021-32837 (GCVE-0-2021-32837)
Vulnerability from cvelistv5
Published
2023-01-17 00:00
Modified
2025-12-22 01:32
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Summary
mechanize, 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.
References
security-advisories@github.com https://github.com/python-mechanize/mechanize/blob/3acb1836f3fd8edc5a758a417dd46b53832ae3b5/mechanize/_urllib2_fork.py#L878-L879 Exploit, Third Party Advisory
security-advisories@github.com https://github.com/python-mechanize/mechanize/commit/dd05334448e9f39814bab044d2eaa5ef69b410d6 Patch, Third Party Advisory
security-advisories@github.com https://github.com/python-mechanize/mechanize/releases/tag/v0.4.6 Third Party Advisory
security-advisories@github.com https://lists.debian.org/debian-lts-announce/2023/06/msg00022.html
security-advisories@github.com https://securitylab.github.com/advisories/GHSL-2021-108-python-mechanize-mechanize/ Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/python-mechanize/mechanize/blob/3acb1836f3fd8edc5a758a417dd46b53832ae3b5/mechanize/_urllib2_fork.py#L878-L879 Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/python-mechanize/mechanize/commit/dd05334448e9f39814bab044d2eaa5ef69b410d6 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/python-mechanize/mechanize/releases/tag/v0.4.6 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2023/06/msg00022.html
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2025/12/msg00028.html
af854a3a-2127-422b-91ae-364da2661108 https://securitylab.github.com/advisories/GHSL-2021-108-python-mechanize-mechanize/ Exploit, Third Party Advisory
Impacted products
Vendor Product Version
python-mechanize mechanize Version: 0.4.6   < 0.4.6
 Create a notification for this product.
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