What is CVE-2026-50565?

CVE-2026-50565 is a medium-severity vulnerability in Fission, classified under CWE-250. CVSS score: 4.9/10. Published 2026-06-10.

How severe is CVE-2026-50565?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Privilege escalation in Fission

CVE-2026-50565

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, Fission builder pods were created with ServiceAccountName: fission-build…

EPSS: 0.003 (17.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Fission — versions < 1.24.0

Weakness classification (CWE)

CWE-250
CWE-269 — Improper Privilege Management
CWE-538 — Insertion of Sensitive Information into Externally-Accessible File or Directory

References

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-2026-50565?: CVE-2026-50565 is a medium-severity vulnerability in Fission, classified under CWE-250. CVSS score: 4.9/10. Published 2026-06-10.
How severe is CVE-2026-50565?: Medium severity. CVSS v3 base score is 4.9 out of 10.