High
Security advisory
A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resource Locator (URL) strings into components. The issue involves how the urlparse method does not sanitize input and allows characters like '\r' and '\n' in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1, 3.9.5, 3.8.11, 3.7.11 and 3.6.14.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-0391
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 03:54 UTC · Revision 1
Source evidence
A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resource Locator (URL) strings into components. The issue involves how the urlparse method does not sanitize input and allows characters like '\r' and '\n' in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1, 3.9.5, 3.8.11, 3.7.11 and 3.6.14.
osv:CVE-2022-0391
Complete source record
{
"id": "7dd5365cd0159fb3998dce6b56268f788f4d63f5904559cdbd8740c8764cc12a",
"url": "https://osv.dev/vulnerability/CVE-2022-0391",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2022-0391",
"summary": "A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resource Locator (URL) strings into components. The issue involves how the urlparse method does not sanitize input and allows characters like '\\r' and '\\n' in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1, 3.9.5, 3.8.11, 3.7.11 and 3.6.14.",
"evidence": "osv:CVE-2022-0391",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2022-0391",
"aliases": [
"BIT-libpython-2022-0391",
"BIT-python-2022-0391",
"BIT-python-min-2022-0391",
"CVE-2022-0391",
"PSF-2022-8"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/python/cpython",
"type": "GIT",
"events": [
{
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},
{
"fixed": "9a0099d1bf14bce417370aae6d55527417cda354"
},
{
"introduced": "1bf9cc509326bc42cd8cb1650eb9bf64550d817e"
},
{
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},
{
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},
{
"fixed": "c3ffbbdf3d5645ee07c22649f2028f9dffc762ba"
},
{
"introduced": "9cf6752276e6fcfd0c23fdb064ad27f448aaaf75"
},
{
"fixed": "0a7dcbdb13f1f2ab6e76e1cff47e80fb263f5da0"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
"range": [
{
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},
{
"fixed": "3.6.14"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
"range": [
{
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},
{
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}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.8.0"
},
{
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}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.9.0"
},
{
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}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
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"v3.8.8rc1",
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"v3.9.0b3",
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"v3.8.3rc1",
"v3.7.7rc1",
"v3.9.0a2",
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"v3.6.10rc1",
"v3.7.6rc1",
"v3.8.0rc1",
"v3.6.9",
"v3.6.9rc1",
"v3.7.3rc1",
"v3.6.8",
"v3.7.2rc1",
"v3.6.8rc1",
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"v3.6.6rc1",
"v3.7.0b5",
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"v3.7.0b3",
"v3.7.0b2",
"v3.7.0b1",
"v3.7.0a2",
"v3.6.2rc1",
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"v3.5.0a2",
"v3.5.0a1",
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"v3.4.0a4",
"v3.4.0a3",
"v3.4.0a2",
"v3.4.0a1",
"v3.3.0rc3",
"v3.3.0rc2",
"v3.3.0rc1",
"v3.3.0b2",
"v3.3.0b1",
"v3.3.0a4",
"v3.3.0a3",
"v3.3.0a2",
"v3.2rc3",
"v3.2rc2",
"v3.2rc1",
"v3.2b2",
"v3.2b1",
"v3.2a4",
"v3.2a3",
"v3.2a2",
"v3.2a1",
"v3.1",
"v3.1rc2",
"v3.1rc1",
"v3.1b1",
"v3.1a2",
"v3.1a1",
"v3.0rc3",
"v3.0rc2",
"v3.0rc1",
"v3.0b3",
"v3.0b2",
"v3.0b1",
"v3.0a5",
"v3.0a4",
"v3.0a3",
"v3.0a2",
"v3.0a1",
"v2.4",
"v2.4c1",
"v2.4b2",
"v2.4b1",
"v2.4a3",
"v2.4a2",
"v2.4a1",
"v2.3c2",
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"v2.1a2",
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"v2.0",
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"v2.0b1",
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"v1.5.2b2",
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"v1.5.2a2",
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"v1.5",
"v1.5b2",
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"v1.4b3",
"v1.4b2",
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"v1.2",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-0391.json"
}
}
],
"modified": "2026-10-28T02:30:42.085547596Z",
"provider": "osv",
"references": [
"https://bugs.python.org/issue43882",
"https://cert-portal.siemens.com/productcert/html/ssa-398330.html",
"https://lists.debian.org/debian-lts-announce/2024/11/msg00024.html",
"https://lists.debian.org/debian-lts-announce/2025/03/msg00013.html",
"https://www.oracle.com/security-alerts/cpuapr2022.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/0xxx/CVE-2022-0391.json",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CSD2YBXP3ZF44E44QMIIAR5VTO35KTRB/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UDBDBAU6HUPZHISBOARTXZ5GKHF2VH5U/",
"https://nvd.nist.gov/vuln/detail/CVE-2022-0391",
"https://security.gentoo.org/glsa/202305-02",
"https://security.netapp.com/advisory/ntap-20220225-0009/",
"https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html"
],
"provider_metadata": {
"cwe_ids": [
"CWE-74"
],
"cna_assigner": "redhat",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "python 3.10.0b1, python 3.9.5, python 3.8.11, python 3.7.11, python 3.6.14"
},
{
"last_affected": "python 3.10.0b1, python 3.9.5, python 3.8.11, python 3.7.11, python 3.6.14"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/0xxx/CVE-2022-0391.json"
}
},
"related_cves": [
{
"value": "CVE-2022-0391",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 510041,
"published_at": "2022-02-09T00:00:00+00:00"
}