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2 vulnerabilities by rthalley
CVE-2026-114605 (GCVE-0-2026-114605)
Vulnerability from nvd – Published: 2026-10-22 16:25 – Updated: 2026-10-22 16:25
VLAI
EPSS
VEX
Title
dnspython dns.name.from_wire_parser() excessive CPU use
Summary
dnspython is a DNS toolkit for Python. Prior to 2.9.0, dns.name.from_wire_parser follows attacker-controlled DNS compression pointer chains without a hop limit. A malicious DNS wire-format message can force excessive pointer traversal during name decompression, causing high CPU use, application degradation, or denial of service in applications that process untrusted DNS messages. This issue is fixed in version 2.9.0.
Severity
7.5 (High)
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/rthalley/dnspython/security/ad… | x_refsource_CONFIRM |
| https://github.com/rthalley/dnspython/commit/b485… | x_refsource_MISC |
| https://github.com/rthalley/dnspython/releases/ta… | x_refsource_MISC |
{
"containers": {
"cna": {
"affected": [
{
"product": "dnspython",
"vendor": "rthalley",
"versions": [
{
"status": "affected",
"version": "\u003c 2.9.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "dnspython is a DNS toolkit for Python. Prior to 2.9.0, dns.name.from_wire_parser follows attacker-controlled DNS compression pointer chains without a hop limit. A malicious DNS wire-format message can force excessive pointer traversal during name decompression, causing high CPU use, application degradation, or denial of service in applications that process untrusted DNS messages. This issue is fixed in version 2.9.0."
}
],
"metrics": [
{
"cvssV3_1": {
"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",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-674",
"description": "CWE-674: Uncontrolled Recursion",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-22T16:25:32.509Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/rthalley/dnspython/security/advisories/GHSA-45c3-73f7-pv4m",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/rthalley/dnspython/security/advisories/GHSA-45c3-73f7-pv4m"
},
{
"name": "https://github.com/rthalley/dnspython/commit/b485e460c266540a1a09ca6d8d1d7b685b1d3023",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/rthalley/dnspython/commit/b485e460c266540a1a09ca6d8d1d7b685b1d3023"
},
{
"name": "https://github.com/rthalley/dnspython/releases/tag/v2.9.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/rthalley/dnspython/releases/tag/v2.9.0"
}
],
"source": {
"advisory": "GHSA-45c3-73f7-pv4m",
"discovery": "UNKNOWN"
},
"title": "dnspython dns.name.from_wire_parser() excessive CPU use"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-114605",
"datePublished": "2026-10-22T16:25:32.509Z",
"dateReserved": "2026-10-21T20:34:25.599Z",
"dateUpdated": "2026-10-22T16:25:32.509Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-114605 (GCVE-0-2026-114605)
Vulnerability from cvelistv5 – Published: 2026-10-22 16:25 – Updated: 2026-10-22 16:25
VLAI
EPSS
VEX
Title
dnspython dns.name.from_wire_parser() excessive CPU use
Summary
dnspython is a DNS toolkit for Python. Prior to 2.9.0, dns.name.from_wire_parser follows attacker-controlled DNS compression pointer chains without a hop limit. A malicious DNS wire-format message can force excessive pointer traversal during name decompression, causing high CPU use, application degradation, or denial of service in applications that process untrusted DNS messages. This issue is fixed in version 2.9.0.
Severity
7.5 (High)
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/rthalley/dnspython/security/ad… | x_refsource_CONFIRM |
| https://github.com/rthalley/dnspython/commit/b485… | x_refsource_MISC |
| https://github.com/rthalley/dnspython/releases/ta… | x_refsource_MISC |
{
"containers": {
"cna": {
"affected": [
{
"product": "dnspython",
"vendor": "rthalley",
"versions": [
{
"status": "affected",
"version": "\u003c 2.9.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "dnspython is a DNS toolkit for Python. Prior to 2.9.0, dns.name.from_wire_parser follows attacker-controlled DNS compression pointer chains without a hop limit. A malicious DNS wire-format message can force excessive pointer traversal during name decompression, causing high CPU use, application degradation, or denial of service in applications that process untrusted DNS messages. This issue is fixed in version 2.9.0."
}
],
"metrics": [
{
"cvssV3_1": {
"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",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-674",
"description": "CWE-674: Uncontrolled Recursion",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-22T16:25:32.509Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/rthalley/dnspython/security/advisories/GHSA-45c3-73f7-pv4m",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/rthalley/dnspython/security/advisories/GHSA-45c3-73f7-pv4m"
},
{
"name": "https://github.com/rthalley/dnspython/commit/b485e460c266540a1a09ca6d8d1d7b685b1d3023",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/rthalley/dnspython/commit/b485e460c266540a1a09ca6d8d1d7b685b1d3023"
},
{
"name": "https://github.com/rthalley/dnspython/releases/tag/v2.9.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/rthalley/dnspython/releases/tag/v2.9.0"
}
],
"source": {
"advisory": "GHSA-45c3-73f7-pv4m",
"discovery": "UNKNOWN"
},
"title": "dnspython dns.name.from_wire_parser() excessive CPU use"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-114605",
"datePublished": "2026-10-22T16:25:32.509Z",
"dateReserved": "2026-10-21T20:34:25.599Z",
"dateUpdated": "2026-10-22T16:25:32.509Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}