PatchSiren

kestra-io CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

HIGH kestra-io CVE published 2026-06-26

CVE-2026-55069

CVE-2026-55069 is a high-severity vulnerability in the Kestra OSS workflow orchestration platform's BasicAuth authentication component. An attacker with read access to the PostgreSQL database can exploit this vulnerability to recover the administrator password offline due to SHA-512's high computation speed. In Kubernetes deployments, a successful crack enables reading of the cluster ServiceAccount Token [truncated]

MEDIUM kestra-io CVE published 2026-06-26

CVE-2026-53577

CVE-2026-53577 is a MEDIUM severity vulnerability in Kestra, an open-source, event-driven orchestration platform. The vulnerability exists in the previewFileFromExecution endpoint (GET /api/v1/{tenant}/executions/{executionId}/file/preview), where an access control bypass allows any authenticated user to read output files from any other execution within the same tenant. This bypasses execution-level and n [truncated]

CRITICAL kestra-io CVE published 2026-06-26

CVE-2026-53576

CVE-2026-53576 is a critical vulnerability in Kestra, an open-source, event-driven orchestration platform. The vulnerability exists in the authentication filter for the REST API, which incorrectly treats requests ending in /configs as the public instance-config endpoint, bypassing Basic-Auth checks. This allows unauthenticated attackers to create flows and trigger executions, potentially leading to code e [truncated]

HIGH kestra-io CVE published 2026-06-26

CVE-2026-49984

CVE-2026-49984 is a high-severity vulnerability in Kestra's internal-storage backend. Prior to versions 1.0.45 and 1.3.23, the backend validates user-supplied paths for .. traversal before converting Windows-style backslashes to forward slashes. An attacker can exploit this by smuggling a traversal sequence using backslashes, allowing them to read any file on the server filesystem readable by the Kestra p [truncated]

HIGH kestra-io CVE published 2026-06-26

CVE-2026-45807

CVE-2026-45807 is a high-severity vulnerability in Kestra, an open-source, event-driven orchestration platform. The vulnerability exists in several Kestra API endpoints that accept a kestra:// URI from clients and pass it through StorageInterface.parentTraversalGuard before reading the underlying file from the local storage backend. An authenticated user can exploit this vulnerability to read any file on [truncated]

CRITICAL kestra-io CVE published 2026-04-03

CVE-2026-34612

CVE-2026-34612 is a SQL Injection vulnerability in Kestra, leading to Remote Code Execution (RCE) via the /api/v1/main/flows/search endpoint. The vulnerability requires authentication and can be triggered by visiting a crafted link. The injected payload is executed by PostgreSQL using COPY ... TO PROGRAM ..., running arbitrary OS commands on the host. This issue was patched in version 1.3.7. The vulnerabi [truncated]