CVEvulnerability
CVE-2026-55839
8.7 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-08-18
- Last modified
- 2026-10-22
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.7 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- Weaknesses
- CWE-79
Description
Kestra is an open-source, event-driven orchestration platform. Prior to 1.3.24, Kestra's custom Markdown parser in ui/src/utils/markdown_plugins/link.ts allows a user with permission to create or update a Flow description to inject JavaScript event-handler attributes through the custom [[link]] syntax, causing stored cross-site scripting when another user opens the description or information panel in the Flow list. This issue is fixed in version 1.3.24.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/kestra-io/kestra/commit/6c8e6d099ed172cbb6b003b7fb30b7bb1f8f710e github.com
- https://github.com/kestra-io/kestra/pull/16835 github.com
- https://github.com/kestra-io/kestra/releases/tag/v1.3.24 github.com
- https://github.com/kestra-io/kestra/security/advisories/GHSA-34pm-923j-7wf8 github.com