CVE-2026-10846 (GCVE-0-2026-10846)
Vulnerability from cvelistv5
Published
2026-06-10 06:37
Modified
2026-06-10 06:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-346 - Origin Validation Error
Summary
NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this vulnerability.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| NLnet Labs | ldns |
Version: 1.2.0 ≤ |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "ldns",
"vendor": "NLnet Labs",
"versions": [
{
"lessThan": "1.9.1",
"status": "affected",
"version": "1.2.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Pablo Ruiz from \u0027codecome.ai\u0027"
}
],
"datePublic": "2026-06-10T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this vulnerability."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"version": "4.0"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "Applications directly or indirectly using the ldns_send_buffer function for (stub) resolving"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-346",
"description": "CWE-346 Origin Validation Error",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T06:37:59.538Z",
"orgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6",
"shortName": "NLnet Labs"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://www.nlnetlabs.nl/downloads/ldns/CVE-2026-10846.txt"
}
],
"solutions": [
{
"lang": "en",
"value": "This issue is fixed starting with version 1.9.1."
}
],
"timeline": [
{
"lang": "en",
"time": "2026-05-14T00:00:00.000Z",
"value": "Issue reported by Pablo Ruiz"
},
{
"lang": "en",
"time": "2026-06-02T00:00:00.000Z",
"value": "NLnet Labs shares patch"
},
{
"lang": "en",
"time": "2026-06-02T00:00:00.000Z",
"value": "Pablo Ruiz verifies patch"
},
{
"lang": "en",
"time": "2026-06-10T00:00:00.000Z",
"value": "Fix released with version 1.9.1"
}
],
"title": "Insufficient verification that responses belong to a query",
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6",
"assignerShortName": "NLnet Labs",
"cveId": "CVE-2026-10846",
"datePublished": "2026-06-10T06:37:59.538Z",
"dateReserved": "2026-06-04T12:06:54.996Z",
"dateUpdated": "2026-06-10T06:37:59.538Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…