CVE-2026-46618

MEDIUM EPSS 28.3%
Published Jun 10, 20263w ago · Modified Jun 17, 20262w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Jun 10, 2026 3w ago
Last Modified Jun 17, 2026 2w ago

Description

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.23.0, before the round-1 security sweep, pkg/builder/builder.go passed Environment.spec.builder.command directly into exec.Command(...) after a strings.Fields split, with no validation of the executable path or its arguments. A user who could create or update Environment CRDs in a namespace observed by the buildermgr could thereby point the builder pod at any executable inside the builder image (e.g. /bin/sh -c '...') and execute arbitrary code in the builder pod context. This issue has been patched in version 1.23.0.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
28.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 3

CWE-250
CWE-269 Improper Privilege Management Authorization
CWE-78 OS Command Injection Injection

References 3

  • github.com https://github.com/fission/fission/pull/3364
  • github.com https://github.com/fission/fission/releases/tag/v1.23.0
  • github.com https://github.com/fission/fission/security/advisories/GHSA-7pjr-qpvh-m339

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.