148 lines
6.1 KiB
JSON
148 lines
6.1 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-47775",
|
|
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "GitHub_M",
|
|
"dateReserved": "2026-05-19T22:36:16.882Z",
|
|
"datePublished": "2026-06-26T17:23:51.663Z",
|
|
"dateUpdated": "2026-06-29T15:20:39.815Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"title": "Envoy OAuth2 Filter: Padding Oracle via AES-256-CBC Cookie Decryption",
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"cweId": "CWE-209",
|
|
"lang": "en",
|
|
"description": "CWE-209: Generation of Error Message Containing Sensitive Information",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"cweId": "CWE-327",
|
|
"lang": "en",
|
|
"description": "CWE-327: Use of a Broken or Risky Cryptographic Algorithm",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"attackComplexity": "HIGH",
|
|
"attackVector": "NETWORK",
|
|
"availabilityImpact": "NONE",
|
|
"baseScore": 6.8,
|
|
"baseSeverity": "MEDIUM",
|
|
"confidentialityImpact": "HIGH",
|
|
"integrityImpact": "HIGH",
|
|
"privilegesRequired": "NONE",
|
|
"scope": "UNCHANGED",
|
|
"userInteraction": "REQUIRED",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
|
|
"version": "3.1"
|
|
}
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-396h-jpq4-vc7p",
|
|
"tags": [
|
|
"x_refsource_CONFIRM"
|
|
],
|
|
"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-396h-jpq4-vc7p"
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"vendor": "envoyproxy",
|
|
"product": "envoy",
|
|
"versions": [
|
|
{
|
|
"version": ">= 1.38.0, < 1.38.1",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": ">= 1.37.0, < 1.37.3",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": ">= 1.36.0, < 1.36.7",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "< 1.35.11",
|
|
"status": "affected"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
|
|
"shortName": "GitHub_M",
|
|
"dateUpdated": "2026-06-26T17:23:51.663Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, the OAuth2 HTTP filter's encrypt()/decrypt() functions use AES-256-CBC without an authentication tag (no HMAC, no AEAD). The /callback endpoint returns HTTP 302 on successful decryption and HTTP 401 on padding failure, creating a padding oracle. An attacker who obtains the encrypted CodeVerifier cookie can recover the plaintext PKCE code_verifier in ~6,200 requests (~100 seconds), then exchange it with a stolen authorization code to obtain the victim's access token. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1."
|
|
}
|
|
],
|
|
"source": {
|
|
"advisory": "GHSA-396h-jpq4-vc7p",
|
|
"discovery": "UNKNOWN"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"references": [
|
|
{
|
|
"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-396h-jpq4-vc7p",
|
|
"tags": [
|
|
"exploit"
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-06-29T15:05:22.645121Z",
|
|
"id": "CVE-2026-47775",
|
|
"options": [
|
|
{
|
|
"Exploitation": "poc"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-06-29T15:20:39.815Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |