CVE-2026-41999 (GCVE-0-2026-41999)
Vulnerability from cvelistv5 – Published: 2026-05-21 09:27 – Updated: 2026-05-21 09:27
VLAI?
Title
Incorrect Behaviour of Views with TCP PROXY Requests
Summary
Incorrect Behaviour of Views with TCP PROXY Requests
Severity ?
4.8 (Medium)
CWE
- Improper Access Control
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PowerDNS | Authoritative |
Affected:
5.0.0 , < 5.0.5
(semver)
|
Date Public ?
2026-05-19 22:00
Credits
{
"containers": {
"cna": {
"affected": [
{
"collectionURL": "https://repo.powerdns.com/",
"defaultStatus": "unaffected",
"modules": [
"Views with Proxy Protocol"
],
"packageName": "pdns",
"product": "Authoritative",
"programFiles": [
"tcpreceiver.cc"
],
"repo": "https://github.com/PowerDNS/pdns",
"vendor": "PowerDNS",
"versions": [
{
"lessThan": "5.0.5",
"status": "affected",
"version": "5.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Zwique"
}
],
"datePublic": "2026-05-19T22:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIncorrect Behaviour of Views with TCP PROXY Requests\u003c/p\u003e"
}
],
"value": "Incorrect Behaviour of Views with TCP PROXY Requests"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-21T09:27:26.744Z",
"orgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
"shortName": "OX"
},
"references": [
{
"url": "https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-06.html"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Incorrect Behaviour of Views with TCP PROXY Requests",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
"assignerShortName": "OX",
"cveId": "CVE-2026-41999",
"datePublished": "2026-05-21T09:27:26.744Z",
"dateReserved": "2026-04-23T11:15:21.198Z",
"dateUpdated": "2026-05-21T09:27:26.744Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-41999\",\"sourceIdentifier\":\"security@open-xchange.com\",\"published\":\"2026-05-21T10:16:25.433\",\"lastModified\":\"2026-05-21T10:16:25.433\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Incorrect Behaviour of Views with TCP PROXY Requests\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@open-xchange.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N\",\"baseScore\":4.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":2.5}]},\"references\":[{\"url\":\"https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-06.html\",\"source\":\"security@open-xchange.com\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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