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vuln-cve/data/2026/73xxx/CVE-2026-73429.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-73429",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-12T14:32:11.796Z",
"datePublished": "2026-08-12T20:53:19.558Z",
"dateUpdated": "2026-08-14T22:15:45.159Z"
},
"containers": {
"cna": {
"title": "Russh: client wrong-length X25519 `clone_from_slice` panic (pre-auth DoS)",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-704",
"lang": "en",
"description": "CWE-704: Incorrect Type Conversion or Cast",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-754",
"lang": "en",
"description": "CWE-754: Improper Check for Unusual or Exceptional Conditions",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/Eugeny/russh/security/advisories/GHSA-g9hv-x236-4qp3",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/Eugeny/russh/security/advisories/GHSA-g9hv-x236-4qp3"
},
{
"name": "https://github.com/Eugeny/russh/commit/a7fc1eb5717264e31c3c5f7dd849b73989a08f3d",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Eugeny/russh/commit/a7fc1eb5717264e31c3c5f7dd849b73989a08f3d"
},
{
"name": "https://github.com/Eugeny/russh/releases/tag/v0.62.4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Eugeny/russh/releases/tag/v0.62.4"
}
],
"affected": [
{
"vendor": "Eugeny",
"product": "russh",
"versions": [
{
"version": "< 0.62.4",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-08-12T20:53:19.558Z"
},
"descriptions": [
{
"lang": "en",
"value": "Russh is a Rust SSH client & server library. Prior to 0.62.4, a malicious SSH server can crash a russh client session with a malformed KEX_ECDH_REPLY containing a server ephemeral value that is not 32 bytes long. The client-side Curve25519Kex::compute_shared_secret function in russh/src/kex/curve25519.rs passes the decoded exchange.server_ephemeral value to clone_from_slice without validating its length, causing a deterministic panic before the server host key is verified. The panic terminates the spawned client session task and surfaces as a JoinError, while the embedding process normally remains running. This issue is fixed in version 0.62.4."
}
],
"source": {
"advisory": "GHSA-g9hv-x236-4qp3",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/Eugeny/russh/security/advisories/GHSA-g9hv-x236-4qp3",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-08-14T22:15:11.220092Z",
"id": "CVE-2026-73429",
"options": [
{
"Exploitation": "poc"
},
{
"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": "2026-08-14T22:15:45.159Z"
}
}
]
}
}