{"cve":"CVE-2026-45695","nvd":{"published":"2026-07-16T16:19:08.307","modified":"2026-07-16T19:16:45.527","status":"Deferred","description":"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=<cmd> can cause exec.CommandContext(\"ssh\") to invoke the command through OpenSSH. This issue is fixed in version 0.23.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-78","CWE-306"],"references":["https://github.com/kopia/kopia/commit/c26c6a1b9734c5089217986ffa5cd19f8a6b8900","https://github.com/kopia/kopia/pull/5354","https://github.com/kopia/kopia/releases/tag/v0.23.0","https://github.com/kopia/kopia/security/advisories/GHSA-2q4c-3mrw-63c3"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:45:36.895656543+00:00"},"epss":{"cve":"CVE-2026-45695","score":0.0161,"percentile":0.75945,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-2q4c-3mrw-63c3","url":"https://osv.dev/vulnerability/GHSA-2q4c-3mrw-63c3","summary":"Kopia: RCE via SSH ProxyCommand Injection","modified":"2026-06-02T05:15:10.039676295Z","packages":[{"ecosystem":"Go","name":"github.com/kopia/kopia","purl":"pkg:golang/github.com/kopia/kopia","ranges":["<0.23.0"],"fixed":["0.23.0"]}]},{"id":"GO-2026-5009","url":"https://osv.dev/vulnerability/GO-2026-5009","summary":"Kopia: RCE via SSH ProxyCommand Injection in github.com/kopia/kopia","modified":"2026-05-20T19:30:14.330043101Z","packages":[{"ecosystem":"Go","name":"github.com/kopia/kopia","purl":"pkg:golang/github.com/kopia/kopia","ranges":["<0.23.0"],"fixed":["0.23.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}