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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-48090",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-05-20T18:40:45.833Z",
"datePublished": "2026-06-26T18:03:05.257Z",
"dateUpdated": "2026-07-08T19:42:34.188Z"
},
"containers": {
"cna": {
"title": "Envoy HTTP: OAuth2 filter late async token completion after stream teardown (UAF / crash risk)",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"lang": "en",
"description": "CWE-416: Use After Free",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cj2-c63f-q26f",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cj2-c63f-q26f"
}
],
"affected": [
{
"vendor": "envoyproxy",
"product": "envoy",
"versions": [
{
"version": ">= 1.38.0, < 1.38.3",
"status": "affected"
},
{
"version": ">= 1.37.0, < 1.37.5",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-06-26T18:03:05.257Z"
},
"descriptions": [
{
"lang": "en",
"value": "Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, the HTTP OAuth2 filter (envoy.filters.http.oauth2) can leave an in-flight async token exchange attached to a downstream stream that has already been torn down. A late AsyncClient completion can still invoke OAuth2Filter methods that use StreamDecoderFilterCallbacks after that object’s lifetime has ended, causing undefined behavior, worker crashes (availability loss), and use-after-free / invalid-vptr failures under AddressSanitizer. This is a memory-safety / lifetime issue in the data plane, not a trivial config bug. Remote code execution is not claimed here; the primary demonstrated impact is DoS via crash and UB; any further impact would be deployment- and allocator-dependent. This vulnerability is fixed in 1.37.5 and 1.38.3."
}
],
"source": {
"advisory": "GHSA-3cj2-c63f-q26f",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-3cj2-c63f-q26f",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-06-29T12:01:33.641021Z",
"id": "CVE-2026-48090",
"options": [
{
"Exploitation": "poc"
},
{
"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": "2026-07-08T19:42:34.188Z"
}
}
]
}
}