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CVE-2026-48129

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4a9655ec568f0e91b75fbef5d4c25145146be8d6016ad965d1f1c33817a8c256
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"kestra","vendor":"kestra-io","versions":[{"status":"affected","version":"< 1.0.43"},{"status":"affected","version":">= 1.1.0, < 1.1.19"},{"status":"affected","version":">= 1.2.0, < 1.2.19"},{"status":"affected","version":">= 1.3.0, < 1.3.19"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:973cbf7b600e0b6c6c078e81cc6438d84a1f7610f863a9e4375eb2dcdbf2661a · sha256:330a1aa1b3aae2b0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:973cbf7b600e0b6c6c078e81cc6438d84a1f7610f863a9e4375eb2dcdbf2661a · sha256:330a1aa1b3aae2b0… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:973cbf7b600e0b6c6c078e81cc6438d84a1f7610f863a9e4375eb2dcdbf2661a · sha256:330a1aa1b3aae2b0… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/kestra-io/kestra/security/advisories/GHSA-q3fw-mvgv-pjr2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/kestra-io/kestra/security/advisories/GHSA-q3fw-mvgv-pjr2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:973cbf7b600e0b6c6c078e81cc6438d84a1f7610f863a9e4375eb2dcdbf2661a · sha256:330a1aa1b3aae2b0… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/kestra-io/kestra/security/advisories/GHSA-q3fw-mvgv-pjr2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:973cbf7b600e0b6c6c078e81cc6438d84a1f7610f863a9e4375eb2dcdbf2661a · sha256:330a1aa1b3aae2b0… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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