{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-45695", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-13T04:38:01.164Z", "datePublished": "2026-07-16T15:42:31.795Z", "dateUpdated": "2026-07-16T18:08:13.371Z" }, "containers": { "cna": { "title": "Kopia: Unauthenticated RCE via SSH ProxyCommand Injection when --insecure --without-password is used", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-78", "lang": "en", "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-306", "lang": "en", "description": "CWE-306: Missing Authentication for Critical Function", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/kopia/kopia/security/advisories/GHSA-2q4c-3mrw-63c3", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/kopia/kopia/security/advisories/GHSA-2q4c-3mrw-63c3" }, { "name": "https://github.com/kopia/kopia/pull/5354", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/kopia/kopia/pull/5354" }, { "name": "https://github.com/kopia/kopia/commit/c26c6a1b9734c5089217986ffa5cd19f8a6b8900", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/kopia/kopia/commit/c26c6a1b9734c5089217986ffa5cd19f8a6b8900" }, { "name": "https://github.com/kopia/kopia/releases/tag/v0.23.0", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/kopia/kopia/releases/tag/v0.23.0" } ], "affected": [ { "vendor": "kopia", "product": "kopia", "versions": [ { "version": "< 0.23.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-16T15:42:31.795Z" }, "descriptions": [ { "lang": "en", "value": "Kopia is a cross-platform backup tool for Windows, macOS, and Linux with fast incremental backups, client-side end-to-end encryption, compression, and data deduplication. Prior to 0.23.0, Kopia's HTTP server started with --without-password accepts unauthenticated requests to /api/v1/repo/exists and forwards attacker-supplied SFTP storage configuration to blob.NewStorage, where externalSSH: true and sshArguments containing -oProxyCommand= can cause exec.CommandContext(\"ssh\") to invoke the command through OpenSSH. This issue is fixed in version 0.23.0." } ], "source": { "advisory": "GHSA-2q4c-3mrw-63c3", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-16T18:06:25.174976Z", "id": "CVE-2026-45695", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "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": "2026-07-16T18:08:13.371Z" } } ] } }