{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-116696",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-26T20:00:59.831Z",
        "datePublished": "2026-10-27T20:14:32.973Z",
        "dateUpdated": "2026-10-27T20:14:32.973Z"
    },
    "containers": {
        "cna": {
            "title": "russh's SSH agent server is susceptible to unbound allocations via repeated SSH_AGENT_CONSTRAIN_CONFIRM messages",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-770",
                            "lang": "en",
                            "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "LOW",
                        "baseScore": 3.3,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/Eugeny/russh/security/advisories/GHSA-9wfm-jcj8-jfv9",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/Eugeny/russh/security/advisories/GHSA-9wfm-jcj8-jfv9"
                },
                {
                    "name": "https://github.com/Eugeny/russh/commit/23aa5d28fe9601c5bdfe9e60b7ec5d4f882c3de6",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/Eugeny/russh/commit/23aa5d28fe9601c5bdfe9e60b7ec5d4f882c3de6"
                },
                {
                    "name": "https://github.com/Eugeny/russh/releases/tag/v0.65.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/Eugeny/russh/releases/tag/v0.65.0"
                }
            ],
            "affected": [
                {
                    "vendor": "Eugeny",
                    "product": "russh",
                    "versions": [
                        {
                            "version": "< 0.65.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-27T20:14:32.973Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. Prior to 0.65.0, russh::keys::agent::server::serve in russh/src/keys/agent/server.rs accepts repeated SSH_AGENT_CONSTRAIN_CONFIRM records while adding a key and appends every Constraint::Confirm record to the key's retained constraint vector without a count or memory limit. A process that can connect to the agent socket, including the remote side of a forwarded agent session, can repeatedly add constrained keys and cause renewable memory growth that persists for the process lifetime because keys without a lifetime constraint do not expire. This issue is fixed in version 0.65.0."
                }
            ],
            "source": {
                "advisory": "GHSA-9wfm-jcj8-jfv9",
                "discovery": "UNKNOWN"
            }
        }
    }
}