{"id":"GHSA-c656-jcx2-7pqj","revision":"45b2d29d249a406e93730bfd7aaf54de","records":[{"revision":"45b2d29d249a406e93730bfd7aaf54de","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-c656-jcx2-7pqj","aliases":["CVE-2026-45576","GO-2026-5315"],"title":"zrok copy writes attacker-controlled WebDAV paths outside the destination root","description":"## Summary\n\nAlice runs `zrok2 copy` from a WebDAV or zrok drive controlled by Bob into a local filesystem target. Bob returns a DAV `href` such as `/../outside.txt`. The sync pipeline stores that path in the source inventory and passes it to `FilesystemTarget.WriteStream`, which joins it with the target root and creates the file outside Alice's selected directory.\n\n### Impact\nUsers given access to a zrok share may be able to traverse the directory tree arbitrarily with the sharing users credentials, allowing for sensitive information to be overwritten.","state":0,"publishedAt":"2026-05-19T15:38:56+00:00","modifiedAt":"2026-06-25T19:56:36.501893+00:00","affected":[{"ecosystem":"Go","name":"github.com/openziti/zrok/v2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"2.0.3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/openziti/zrok","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.4.23"},{"kind":"last_affected","version":"1.1.11"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/openziti/zrok/security/advisories/GHSA-c656-jcx2-7pqj","https://github.com/openziti/zrok"],"sourceUrl":"https://github.com/advisories/GHSA-c656-jcx2-7pqj","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-c656-jcx2-7pqj","identifiers":["GHSA-c656-jcx2-7pqj","CVE-2026-45576","GO-2026-5315"]},"retained":false,"historicalAffected":[]}],"coverage":[]}