MediumFix available
python3 — security advisory
Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. This is fixed in: v3.5.10, v3.5.10rc1; v3.6.12; v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2.
- Products
- python3
- Affected versions
- Not specified
- Fixed versions
- 3.6.9-r3, 3.7.7-r1, 3.8.2-r1, 3.8.4-r0
- CVEs
- CVE-2020-14422
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:03 UTC · Revision 1
Source evidence
Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. This is fixed in: v3.5.10, v3.5.10rc1; v3.6.12; v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2.
osv:ALPINE-CVE-2020-14422
python3
Fixed versions: 3.7.7-r1
python3
Fixed versions: 3.8.2-r1
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.8.4-r0
python3
Fixed versions: 3.6.9-r3
Complete source record
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"url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-14422",
"method": "structured",
"payload": {
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"title": "ALPINE-CVE-2020-14422",
"summary": "Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. This is fixed in: v3.5.10, v3.5.10rc1; v3.6.12; v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2.",
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"modified": "2026-10-26T11:17:55.127100174Z",
"provider": "osv",
"upstream": [
"CVE-2020-14422"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2020-14422"
]
},
"related_cves": [
{
"value": "CVE-2020-14422",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 450424,
"published_at": "2020-06-18T14:15:11.047+00:00"
}