CVE-2026-42005 - Vulnerability Details - OpenCVE

An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Powerdns	Authoritative

No data.

No data.

References

Link	Providers
https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-07.html

History

Fri, 26 Jun 2026 00:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Powerdns Powerdns authoritative
Vendors & Products		Powerdns Powerdns authoritative

Thu, 25 Jun 2026 16:45:00 +0000

Type	Values Removed	Values Added
Weaknesses	CWE-368

Thu, 25 Jun 2026 14:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-400
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 25 Jun 2026 13:45:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-368

Thu, 25 Jun 2026 12:15:00 +0000

Type	Values Removed	Values Added
Description		An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.
Title		Insufficient input validation of internal web server
References		https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-07.html
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}`

MITRE

Status: PUBLISHED

Assigner: OX

Published: 2026-06-25T11:57:16.346Z

Updated: 2026-06-25T13:04:12.854Z

Reserved: 2026-04-23T11:15:21.199Z

Link: CVE-2026-42005

Vulnrichment

Updated: 2026-06-25T13:04:09.406Z

NVD

No data.

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42005", "assignerOrgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981", "state": "PUBLISHED", "assignerShortName": "OX", "dateReserved": "2026-04-23T11:15:21.199Z", "datePublished": "2026-06-25T11:57:16.346Z", "dateUpdated": "2026-06-25T13:04:12.854Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981", "shortName": "OX", "dateUpdated": "2026-06-25T11:57:16.346Z"}, "title": "Insufficient input validation of internal web server", "datePublic": "2026-06-10T22:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "description": "Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "affected": [{"vendor": "PowerDNS", "product": "Authoritative", "collectionURL": "https://repo.powerdns.com/", "packageName": "pdns", "repo": "https://github.com/PowerDNS/pdns", "modules": ["YaHTTP"], "programFiles": ["ext/yahttp/yahttp/reqresp.cpp"], "versions": [{"status": "affected", "version": "4.9.0", "lessThan": "4.9.16", "versionType": "semver"}, {"status": "affected", "version": "5.0.0", "lessThan": "5.0.6", "versionType": "semver"}, {"status": "affected", "version": "5.1.0", "lessThan": "5.1.2", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "An attacker can send a web request that causes unlimited memory \nallocation in the internal web server, leading to a denial of service. \nThe internal web server is disabled by default.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "An attacker can send a web request that causes unlimited memory \nallocation in the internal web server, leading to a denial of service. \nThe internal web server is disabled by default."}]}], "references": [{"url": "https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-07.html"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW", "baseSeverity": "MEDIUM", "baseScore": 4.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}}], "credits": [{"lang": "en", "value": "ilya rozentsvaig", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-400", "lang": "en", "description": "CWE-400 Uncontrolled Resource Consumption"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-25T13:03:44.259390Z", "id": "CVE-2026-42005", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-25T13:04:12.854Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-42005", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-25T13:03:44.259390Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-400", "description": "CWE-400 Uncontrolled Resource Consumption"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-25T13:04:09.406Z"}}], "cna": {"title": "Insufficient input validation of internal web server", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "ilya rozentsvaig"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/PowerDNS/pdns", "vendor": "PowerDNS", "modules": ["YaHTTP"], "product": "Authoritative", "versions": [{"status": "affected", "version": "4.9.0", "lessThan": "4.9.16", "versionType": "semver"}, {"status": "affected", "version": "5.0.0", "lessThan": "5.0.6", "versionType": "semver"}, {"status": "affected", "version": "5.1.0", "lessThan": "5.1.2", "versionType": "semver"}], "packageName": "pdns", "programFiles": ["ext/yahttp/yahttp/reqresp.cpp"], "collectionURL": "https://repo.powerdns.com/", "defaultStatus": "unaffected"}], "datePublic": "2026-06-10T22:00:00.000Z", "references": [{"url": "https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-07.html"}], "x_generator": {"engine": "Vulnogram 1.0.2"}, "descriptions": [{"lang": "en", "value": "An attacker can send a web request that causes unlimited memory \nallocation in the internal web server, leading to a denial of service. \nThe internal web server is disabled by default.", "supportingMedia": [{"type": "text/html", "value": "An attacker can send a web request that causes unlimited memory \nallocation in the internal web server, leading to a denial of service. \nThe internal web server is disabled by default.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "Allocation of Resources Without Limits or Throttling"}]}], "providerMetadata": {"orgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981", "shortName": "OX", "dateUpdated": "2026-06-25T11:57:16.346Z"}}}, "cveMetadata": {"cveId": "CVE-2026-42005", "state": "PUBLISHED", "dateUpdated": "2026-06-25T13:04:12.854Z", "dateReserved": "2026-04-23T11:15:21.199Z", "assignerOrgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981", "datePublished": "2026-06-25T11:57:16.346Z", "assignerShortName": "OX"}, "dataVersion": "5.2"}