Medium severity · published Mar 6, 2026
CVE-2026-29082
Kestra: Stored Cross-Site Scripting in Markdown File Preview
5.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
kestra · kestra-io
<= 1.1.10 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-29082
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-29082
Product
https://github.com/kestra-io/kestra/releases/tag/v1.0.30
Exploit
https://github.com/kestra-io/kestra/security/advisories/GHSA-r36c-83hm-pc8j
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