What is CVE-2026-50545?

CVE-2026-50545 is a critical-severity vulnerability in Fission, classified under Improper Privilege Management. CVSS score: 9.9/10. Published 2026-06-10.

How severe is CVE-2026-50545?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Privilege escalation in Fission

CVE-2026-50545

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, the Environment.spec.runtime.podSpec / spec.builder.podSpec passthrough…

Vulnerability class: Privilege Escalation

EPSS: 0.003 (22.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Fission — versions < 1.24.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-50545?: CVE-2026-50545 is a critical-severity vulnerability in Fission, classified under Improper Privilege Management. CVSS score: 9.9/10. Published 2026-06-10.
How severe is CVE-2026-50545?: Critical severity. CVSS v3 base score is 9.9 out of 10.