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CVE-2026-53577: kestra before 1.0.45 (exclusive), from 1.1.0 (inclusive), before 1.3.21 (exclusive), < 1.0.45, >= 1.1.0, < 1.3.21
CVE-2026-53577. CVSS 3.1 base score 6.5 (MEDIUM, Vendor/CNA). EPSS 0.00437 (percentile 0.36983), scored 24-Oct-2026.
Affected technology
kestra · before 1.0.45 (exclusive)
kestra
kestra · from 1.1.0 (inclusive), before 1.3.21 (exclusive)
kestra
kestra · < 1.0.45, >= 1.1.0, < 1.3.21
kestra-io
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required
What an attacker can do
Any authenticated user can read output files from any other execution within the same tenant, bypassing execution-level and namespace-level isolation. Vendor/CNA’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality impact as high; integrity and availability impact as none.
- CWE
- CWE-863
- CCR priority
- 26.1 /100 (P4)
- CVSS 3.1
- 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · Vendor/CNA
- EPSS
- 0.00437 · percentile 0.37691 · 2026-10-25
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-53577.html