CVE-2026-53577

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Source
https://cve.org/CVERecord?id=CVE-2026-53577
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53577.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53577
Aliases
  • GHSA-r6v3-xxwj-9h42
Published
2026-06-26T20:52:04.006Z
Modified
2026-07-15T01:49:14.944678907Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Kestra: Cross-Execution File Read via Preview Endpoint (IDOR)
Details

Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the previewFileFromExecution endpoint (GET /api/v1/{tenant}/executions/{executionId}/file/preview) contains an access control bypass that allows any authenticated user to read output files from any other execution within the same tenant, bypassing execution-level and namespace-level isolation. This vulnerability is fixed in 1.0.45 and 1.3.21.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53577.json",
    "cwe_ids": [
        "CWE-863"
    ]
}
References

Affected packages

Git / github.com/kestra-io/kestra

Affected ranges

Type
GIT
Repo
https://github.com/kestra-io/kestra
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
670b719eb5e0fc579ad9044551223642c24335dd
Introduced
1e670b5e7e92f89533ee17d564263578b0d5ec8c
Fixed
2541c53230388d76a9acc1b43245ebce31312a88
Database specific 
{
    "cpe": "cpe:2.3:a:kestra:kestra:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.0.45"
        },
        {
            "introduced": "1.1.0"
        },
        {
            "fixed": "1.3.21"
        }
    ]
}

Affected versions

v0.*
v0.0.1234
v0.19.0
v0.7.0
v0.7.1
v0.8.0
v0.8.1
v0.9.0
v0.9.1
v1.*
v1.0.0
v1.0.1
v1.0.10
v1.0.11
v1.0.12
v1.0.13
v1.0.14
v1.0.15
v1.0.16
v1.0.17
v1.0.18
v1.0.19
v1.0.2
v1.0.20
v1.0.21
v1.0.22
v1.0.23
v1.0.24
v1.0.25
v1.0.26
v1.0.27
v1.0.28
v1.0.29
v1.0.3
v1.0.30
v1.0.31
v1.0.32
v1.0.33
v1.0.34
v1.0.35
v1.0.36
v1.0.37
v1.0.38
v1.0.39
v1.0.4
v1.0.40
v1.0.41
v1.0.42
v1.0.43
v1.0.44
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.3.0
v1.3.0-rc0
v1.3.0-rc1
v1.3.1
v1.3.11
v1.3.13
v1.3.14
v1.3.15
v1.3.16
v1.3.17
v1.3.18
v1.3.19
v1.3.2
v1.3.20
v1.3.3
v1.3.4
v1.3.5
v1.3.6
v1.3.7
v1.3.8
v1.3.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53577.json"