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vuln-cve/data/2026/6xxx/CVE-2026-6479.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-6479",
"assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"state": "PUBLISHED",
"assignerShortName": "PostgreSQL",
"dateReserved": "2026-04-17T00:45:37.869Z",
"datePublished": "2026-05-14T13:00:13.859Z",
"dateUpdated": "2026-05-14T15:26:20.166Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"shortName": "PostgreSQL",
"dateUpdated": "2026-05-14T13:00:13.859Z"
},
"title": "PostgreSQL SSL/GSS init causes denial of service, via uncontrolled recursion",
"descriptions": [
{
"lang": "en",
"value": "Uncontrolled recursion in PostgreSQL SSL and GSS negotiation allows an attacker able to connect to a PostgreSQL AF_UNIX socket to achieve sustained denial of service. If SSL and GSS are both disabled, an attacker can do the same via access to a PostgreSQL TCP socket. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected."
}
],
"affected": [
{
"defaultStatus": "unaffected",
"product": "PostgreSQL",
"vendor": "n/a",
"versions": [
{
"lessThan": "18.4",
"status": "affected",
"version": "18",
"versionType": "rpm"
},
{
"lessThan": "17.10",
"status": "affected",
"version": "17",
"versionType": "rpm"
},
{
"lessThan": "16.14",
"status": "affected",
"version": "16",
"versionType": "rpm"
},
{
"lessThan": "15.18",
"status": "affected",
"version": "15",
"versionType": "rpm"
},
{
"lessThan": "14.23",
"status": "affected",
"version": "0",
"versionType": "rpm"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-674",
"type": "CWE",
"description": "Uncontrolled Recursion"
}
]
}
],
"references": [
{
"url": "https://www.postgresql.org/support/security/CVE-2026-6479/"
}
],
"metrics": [
{
"format": "CVSS",
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 7.5,
"baseSeverity": "HIGH"
}
}
],
"workarounds": [
{
"lang": "en",
"value": "enable SSL and/or GSS; disable unix_socket_directories"
}
],
"credits": [
{
"lang": "en",
"value": "The PostgreSQL project thanks Calif.io in collaboration with Claude and Anthropic Research for reporting this problem."
}
]
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-14T15:26:13.223741Z",
"id": "CVE-2026-6479",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"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": "2026-05-14T15:26:20.166Z"
}
}
]
}
}