What is CVE-2026-73247?

CVE-2026-73247 is a high-severity vulnerability in Kestra-io Kestra, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-08-11.

How severe is CVE-2026-73247?

High severity. CVSS v3 base score is 8.6 out of 10.

SSRF in Kestra-io Kestra

CVE-2026-73247

Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0, Kestra's core/src/main/java/io/kestra/core/runners/pebble/functions/HttpFunction.java passes the user-controlled http() uri argument to URI.create() and the ser…

Vulnerability class: SSRF (Server-Side Request Forgery)

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Affected products

Kestra-io Kestra — versions < 2.0.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-73247?: CVE-2026-73247 is a high-severity vulnerability in Kestra-io Kestra, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-08-11.
How severe is CVE-2026-73247?: High severity. CVSS v3 base score is 8.6 out of 10.