What is CVE-2026-29082?

CVE-2026-29082 is a high-severity vulnerability in Kestra-io Kestra, classified under Cross-site Scripting. CVSS score: 7.3/10. Published 2026-03-06.

How severe is CVE-2026-29082?

High severity. CVSS v3 base score is 7.3 out of 10.

XSS in Kestra-io Kestra

CVE-2026-29082

Kestra is an event-driven orchestration platform. In versions from 1.1.10 and prior, Kestra’s execution-file preview renders user-supplied Markdown (.md) with markdown-it instantiated as html:true and injects the resulting HTML with Vue’s…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (17.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.

Affected products

Kestra-io Kestra — versions <= 1.1.10

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/kestra-io/kestra/security/advisories/GHSA-r36c-83hm-pc8j (x_refsource_CONFIRM)
https://github.com/kestra-io/kestra/releases/tag/v1.0.30 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-29082?: CVE-2026-29082 is a high-severity vulnerability in Kestra-io Kestra, classified under Cross-site Scripting. CVSS score: 7.3/10. Published 2026-03-06.
How severe is CVE-2026-29082?: High severity. CVSS v3 base score is 7.3 out of 10.