# Kestra vulnerabilities

Source: https://junglewise.ai/threats/technologies/kestra  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 10 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/kestra.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 12 vulnerabilities in Kestra: 0 in the last 7 days and 1 in the last 90 days, 3 of them critical and 0 exploited in the wild. The most recent, CVE-2026-55839, was published on 18 August 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 12 (3 critical, 0 exploited in the wild)

## About Kestra

Open-source workflow orchestration platform for scheduling and managing data pipelines and tasks.

## Latest Kestra vulnerabilities

- [CVE-2026-55839: Kestra stored XSS via custom Markdown link attribute injection](https://junglewise.ai/threats/cve-2026-55839-kestra-stored-xss-via-custom-markdown-link-attribute-injection) (high, CVSS 8.7, published 18 Aug 2026)
- [CVE-2026-73247: Kestra Server-Side Request Forgery via Pebble http() function](https://junglewise.ai/threats/cve-2026-73247-kestra-server-side-request-forgery-via-pebble-http-function) (high, CVSS 8.6, published 11 Aug 2026)
- [CVE-2026-73246: Kestra unauthenticated worker endpoint exposes task credentials](https://junglewise.ai/threats/cve-2026-73246-kestra-unauthenticated-worker-endpoint-exposes-task-credentials) (high, CVSS 7.5, published 11 Aug 2026)
- [CVE-2026-73245: Kestra unauthenticated management endpoints on port 8081](https://junglewise.ai/threats/cve-2026-73245-kestra-unauthenticated-management-endpoints-on-port-8081) (medium, CVSS 6.5, published 11 Aug 2026)
- [CVE-2026-55069: Kestra OSS weak password hashing in BasicAuth component](https://junglewise.ai/threats/cve-2026-55069-kestra-oss-weak-password-hashing-in-basicauth-component) (high, CVSS 8.7, published 26 Jun 2026)
- [CVE-2026-53577: Kestra access control bypass in previewFileFromExecution endpoint](https://junglewise.ai/threats/cve-2026-53577-kestra-access-control-bypass-in-previewfilefromexecution-endpoint) (medium, CVSS 6.5, published 26 Jun 2026)
- [CVE-2026-53576: Kestra authentication bypass and RCE via path-suffix manipulation](https://junglewise.ai/threats/cve-2026-53576-kestra-authentication-bypass-and-rce-via-path-suffix-manipulation) (critical, CVSS 10, published 26 Jun 2026)
- [CVE-2026-49984: Kestra path traversal in LocalStorage via backslash smuggling](https://junglewise.ai/threats/cve-2026-49984-kestra-path-traversal-in-localstorage-via-backslash-smuggling) (high, CVSS 7.7, published 26 Jun 2026)
- [CVE-2026-45807: Kestra path traversal via URL-encoded characters in API endpoints](https://junglewise.ai/threats/cve-2026-45807-kestra-path-traversal-via-url-encoded-characters-in-api-endpoints) (high, CVSS 7.7, published 26 Jun 2026)
- [CVE-2026-48129: Kestra path traversal in inputFiles task property](https://junglewise.ai/threats/cve-2026-48129-kestra-path-traversal-in-inputfiles-task-property) (medium, CVSS 6.5, published 19 Jun 2026)
- [CVE-2026-38428: Kestra SQL injection in flow search API leading to RCE](https://junglewise.ai/threats/cve-2026-38428-kestra-sql-injection-in-flow-search-api-leading-to-rce) (critical, CVSS 9.8, published 5 May 2026)
- [CVE-2026-34612: Kestra SQL injection in flow search leads to RCE](https://junglewise.ai/threats/cve-2026-34612-kestra-sql-injection-in-flow-search-leads-to-rce) (critical, CVSS 9.9, published 3 Apr 2026)

## Most severe Kestra vulnerabilities

- [CVE-2026-53576: Kestra authentication bypass and RCE via path-suffix manipulation](https://junglewise.ai/threats/cve-2026-53576-kestra-authentication-bypass-and-rce-via-path-suffix-manipulation) (critical, CVSS 10, published 26 Jun 2026)
- [CVE-2026-34612: Kestra SQL injection in flow search leads to RCE](https://junglewise.ai/threats/cve-2026-34612-kestra-sql-injection-in-flow-search-leads-to-rce) (critical, CVSS 9.9, published 3 Apr 2026)
- [CVE-2026-38428: Kestra SQL injection in flow search API leading to RCE](https://junglewise.ai/threats/cve-2026-38428-kestra-sql-injection-in-flow-search-api-leading-to-rce) (critical, CVSS 9.8, published 5 May 2026)
- [CVE-2026-55839: Kestra stored XSS via custom Markdown link attribute injection](https://junglewise.ai/threats/cve-2026-55839-kestra-stored-xss-via-custom-markdown-link-attribute-injection) (high, CVSS 8.7, published 18 Aug 2026)
- [CVE-2026-55069: Kestra OSS weak password hashing in BasicAuth component](https://junglewise.ai/threats/cve-2026-55069-kestra-oss-weak-password-hashing-in-basicauth-component) (high, CVSS 8.7, published 26 Jun 2026)
- [CVE-2026-73247: Kestra Server-Side Request Forgery via Pebble http() function](https://junglewise.ai/threats/cve-2026-73247-kestra-server-side-request-forgery-via-pebble-http-function) (high, CVSS 8.6, published 11 Aug 2026)
- [CVE-2026-49984: Kestra path traversal in LocalStorage via backslash smuggling](https://junglewise.ai/threats/cve-2026-49984-kestra-path-traversal-in-localstorage-via-backslash-smuggling) (high, CVSS 7.7, published 26 Jun 2026)
- [CVE-2026-45807: Kestra path traversal via URL-encoded characters in API endpoints](https://junglewise.ai/threats/cve-2026-45807-kestra-path-traversal-via-url-encoded-characters-in-api-endpoints) (high, CVSS 7.7, published 26 Jun 2026)
- [CVE-2026-73246: Kestra unauthenticated worker endpoint exposes task credentials](https://junglewise.ai/threats/cve-2026-73246-kestra-unauthenticated-worker-endpoint-exposes-task-credentials) (high, CVSS 7.5, published 11 Aug 2026)
- [CVE-2026-73245: Kestra unauthenticated management endpoints on port 8081](https://junglewise.ai/threats/cve-2026-73245-kestra-unauthenticated-management-endpoints-on-port-8081) (medium, CVSS 6.5, published 11 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 1 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Kestra vulnerabilities", https://junglewise.ai/threats/technologies/kestra, 10 November 2026.