fkie_cve-2021-32837
Vulnerability from fkie_nvd
Published
2023-01-17 22:15
Modified
2025-12-22 02:16
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mechanize_project | mechanize | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:mechanize_project:mechanize:*:*:*:*:*:python:*:*",
"matchCriteriaId": "29D79742-1F31-48EC-B67A-A49B3B73EADE",
"versionEndExcluding": "0.4.6",
"vulnerable": true
}
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"negate": false,
"operator": "OR"
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "mechanize, una librer\u00eda para interactuar autom\u00e1ticamente con servidores web HTTP, contiene una expresi\u00f3n regular que es vulnerable a la denegaci\u00f3n de servicio de expresi\u00f3n regular (ReDoS) antes de la versi\u00f3n 0.4.6. Si un servidor web responde de forma maliciosa, mechanize podr\u00eda fallar. La versi\u00f3n 0.4.6 tiene un parche para este problema."
}
],
"id": "CVE-2021-32837",
"lastModified": "2025-12-22T02:16:01.123",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"type": "Secondary"
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"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"source": "nvd@nist.gov",
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"published": "2023-01-17T22:15:10.533",
"references": [
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"tags": [
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"url": "https://github.com/python-mechanize/mechanize/blob/3acb1836f3fd8edc5a758a417dd46b53832ae3b5/mechanize/_urllib2_fork.py#L878-L879"
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"url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00022.html"
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"tags": [
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"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
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"lang": "en",
"value": "CWE-1333"
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"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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