{"id":"CVE-2026-48129","summary":"Kestra task inputFiles accepts traversal filenames for worker file writes","details":"Kestra is an open-source, event-driven orchestration platform. Prior to versions 1.3.19, 1.2.19, 1.1.19, and 1.0.43, Kestra task `inputFiles` writes rendered file names directly under the task working directory. When a flow forwards untrusted execution or webhook data into an `inputFiles` file name, a caller can use `../` path segments to create or overwrite files outside that task working directory on the worker filesystem. Versions 1.3.19, 1.2.19, 1.1.19, and 1.0.43 patch the issue.","aliases":["GHSA-q3fw-mvgv-pjr2"],"modified":"2026-08-12T03:51:45.066002849Z","published":"2026-06-19T20:16:24.043Z","database_specific":{"cwe_ids":["CWE-22"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48129.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48129.json"},{"type":"ADVISORY","url":"https://github.com/kestra-io/kestra/security/advisories/GHSA-q3fw-mvgv-pjr2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48129"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/kestra-io/kestra","events":[{"introduced":"0"},{"fixed":"27c0064c05c37f604b97f667dc15f06113785a13"},{"introduced":"1e670b5e7e92f89533ee17d564263578b0d5ec8c"},{"fixed":"cd1f5f766f3aa23e9a17542860c18edcf131cfef"},{"introduced":"851cc74fcda276eae781b4faccee1c1f291af773"},{"fixed":"8bc838b9649c0325ae2642f5a89867b48ea3443c"},{"introduced":"ca026b3b1d41cfc8a396023c8a13940b4142dfb1"},{"fixed":"82cb2d921d9800179597ec324a5fd9df593b644b"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"1.0.43"},{"introduced":"1.1.0"},{"fixed":"1.1.19"},{"introduced":"1.2.0"},{"fixed":"1.2.19"},{"introduced":"1.3.0"},{"fixed":"1.3.19"}]}}],"versions":["v1.1.18","v1.0.42","v1.3.18","v1.2.18","v1.1.17","v1.0.41","v1.3.17","v1.0.40","v1.3.16","v1.0.39","v1.2.17","v1.3.15","v1.0.38","v1.2.16","v1.3.14","v1.2.15","v1.3.13","v1.0.37","v1.3.11","v1.2.14","v1.0.36","v1.3.9","v1.0.35","v1.3.8","v1.2.13","v1.3.7","v1.2.12","v1.0.34","v1.3.6","v1.3.5","v1.3.4","v1.2.11","v1.0.33","v1.3.3","v1.1.16","v1.2.10","v1.2.9","v1.3.2","v1.0.32","v1.0.31","v1.3.1","v1.0.30","v1.3.0","v1.0.29","v1.2.8","v1.2.7","v1.0.28","v1.2.6","v1.2.5","v1.0.27","v1.2.4","v1.0.26","v1.2.3","v1.0.25","v1.1.15","v1.2.2","v1.1.14","v1.2.1","v1.0.24","v1.0.23","v1.0.22","v1.0.21","v1.2.0","v1.1.13","v1.0.20","v1.1.12","v1.0.19","v1.1.11","v1.1.10","v1.0.18","v1.1.9","v1.0.17","v1.1.8","v1.0.16","v1.1.7","v1.1.6","v1.0.15","v1.0.14","v1.1.5","v1.0.13","v1.1.4","v1.0.12","v1.1.3","v1.0.11","v1.1.2","v1.1.1","v1.1.0","v1.0.10","v1.0.9","v1.0.8","v1.0.7","v1.0.6","v1.0.5","v1.0.4","v1.0.3","v1.0.2","v1.0.1","v1.0.0","v0.0.1234","v0.19.0","v0.9.1","v0.9.0","v0.8.1","v0.8.0","v0.7.1","v0.7.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48129.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L"}]}