CVE-2026-45807
- Source
- https://cve.org/CVERecord?id=CVE-2026-45807
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45807.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-45807
- Aliases
-
- GHSA-3529-p4wf-xp79
- Published
- 2026-06-26T20:57:13.891Z
- Modified
- 2026-07-15T01:49:08.727409120Z
- Severity
-
- 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- Summary
- Kestra: Path traversal via URL-encoded "%2E%2E" in execution and namespace file endpoints allows arbitrary file read
- Details
-
Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.43 and 1.3.19, several Kestra API endpoints accept a kestra:// URI from the client and pass it through StorageInterface.parentTraversalGuard before reading the underlying file from the local storage backend. The guard only inspects the literal URI.toString(), so a URL-encoded .. written as %2E%2E slips through. The downstream code then calls URI.getPath(), which decodes %2E%2E back to .., and the resulting path is handed to Paths.get(...) without normalization. The OS resolves the .. segments at open(2) time, so an authenticated user with a single execution can read any file the Kestra process has access to on the host filesystem (/etc/passwd, mounted secrets, other tenants' execution outputs, etc.). This vulnerability is fixed in 1.0.43 and 1.3.19.
- Database specific
{ "cwe_ids": [ "CWE-22" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45807.json", "cna_assigner": "GitHub_M" }- References
Affected packages
Git / github.com/kestra-io/kestra
Affected ranges
- Type
- GIT
- Repo
- https://github.com/kestra-io/kestra
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixed
- Database specific
{ "cpe": "cpe:2.3:a:kestra:kestra:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "1.0.43" }, { "introduced": "1.1.0" }, { "fixed": "1.3.19" } ], "source": "CPE_RANGE" }