Critical severity9.9NVD Advisory· Published Jun 10, 2026· Updated Jun 12, 2026
CVE-2026-50566
CVE-2026-50566
Description
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, a tenant with environments.fission.io create/update RBAC can run privileged / allowPrivilegeEscalation / dangerous-capability containers in the Fission function or builder namespace, scheduled under the executor's high-privilege service account — enabling container-sandbox escape, host filesystem and network access, and potential node- and cluster-level compromise. This issue has been patched in version 1.24.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/fission/fissionGo | < 1.24.0 | 1.24.0 |
Affected products
3- osv-coordsRange: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-m63v-2g9w-2w6vghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-50566ghsaADVISORY
- github.com/fission/fission/commit/695d3e97e3a20463ab7c8c081843e69e65e952e5ghsaWEB
- github.com/fission/fission/pull/3406nvdWEB
- github.com/fission/fission/releases/tag/v1.24.0nvdWEB
- github.com/fission/fission/security/advisories/GHSA-m63v-2g9w-2w6vnvdWEB
News mentions
1- Fission Kubernetes Serverless Framework: 17 Vulnerabilities Disclosed TogetherVypr Intelligence · Jun 10, 2026