PT-2026-28508 · Kestra · Kestra

Dmitrii-Zalmanov · Publicado 2026-03-26 · Atualizado 2026-03-26 · CVE-2026-33664

Positive Technologies (AI Summary)

CVSS v3.1

7.3

Alta

Vetor base

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Kestra versions up to and including 1.3.3

Description Kestra is an open-source, event-driven orchestration platform. Versions up to and including 1.3.3 render user-supplied flow YAML metadata fields – description, inputs[].displayName, inputs[].description – through the Markdown.vue component instantiated with html: true. The resulting HTML is injected into the DOM via Vue's v-html without any sanitization. This allows a flow author to embed arbitrary JavaScript that executes in the browser of any user who views or interacts with the flow. This issue affects different components and data sources, requiring minimal user interaction.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Enumeração de Fraquezas

CWE-79

Identificadores relacionados

CVE-2026-33664

GHSA-V2MC-8Q95-G7HP

Produtos afetados

Kestra

Referências · 5

• 🔥 https://github.com/kestra-io/kestra/security/advisories/GHSA-v2mc-8q95-g7hp · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33664.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-33664 · Aviso do Fabricante
• https://twitter.com/CVEnew/status/2037280517100539915 · Publicação no Twitter
• https://nvd.nist.gov/vuln/detail/CVE-2026-33664 · Nota de Segurança