CVE-2026-42396 (GCVE-0-2026-42396)
Vulnerability from cvelistv5 – Published: 2026-05-21 09:25 – Updated: 2026-05-21 09:25
VLAI?
Title
Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
Summary
Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
Severity ?
4.9 (Medium)
CWE
- Improper Control of Generation of Code ('Code Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PowerDNS | Authoritative |
Affected:
4.9.0 , < 4.9.15
(semver)
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": [
"Catalog Zones"
],
"packageName": "pdns",
"product": "Authoritative",
"programFiles": [
"auth-catalogzone.cc"
],
"repo": "https://github.com/PowerDNS/pdns",
"vendor": "PowerDNS",
"versions": [
{
"lessThan": "4.9.15",
"status": "affected",
"version": "4.9.0",
"versionType": "semver"
},
{
"lessThan": "5.0.5",
"status": "affected",
"version": "5.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "ilhamaf"
}
],
"datePublic": "2026-05-19T22:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eInsufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail\u003c/p\u003e"
}
],
"value": "Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-21T09:25:03.315Z",
"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": "Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
"assignerShortName": "OX",
"cveId": "CVE-2026-42396",
"datePublished": "2026-05-21T09:25:03.315Z",
"dateReserved": "2026-04-27T08:53:58.839Z",
"dateUpdated": "2026-05-21T09:25:03.315Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-42396\",\"sourceIdentifier\":\"security@open-xchange.com\",\"published\":\"2026-05-21T10:16:25.927\",\"lastModified\":\"2026-05-21T10:16:25.927\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@open-xchange.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":4.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.2,\"impactScore\":3.6}]},\"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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