CVE-2026-29082

Kestra: Stored Cross-Site Scripting in Markdown File Preview

At a glance

Severity: HIGH 7.3
EPSS: EPSS 0.24 % · percentile 15 (2026-10-27)
State: PUBLISHED
Published: 2026-03-06
Updated: 2026-03-09
Assigner: GitHub_M
NVD status: Analyzed

Description

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 v-html without sanitisation. At time of publication, there are no publicly available patches.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N	GitHub_M
CVSS 3.1	HIGH 7.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	MEDIUM 5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-79

European references

ENISA EUVD · EUVD-2026-10046
GCVE · GCVE-0-2026-29082

Affected configurations (NVD CPE)

cpe:2.3:a:kestra:kestra:*:*:*:*:*:*:*:* ≤ 1.1.10

Affected products

Product	Versions
kestra-io · kestra	affected <= 1.1.10

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD