TI-2026-34270 Aliases CVE-2026-46612 GHSA-chf8-4hv6-8pg6

Fission StorageSvc /v1/archive endpoint exposes unauthenticated CRUD over all function archives

MEDIUM 40CWE-306Published 2026-06-10 · Updated 2026-06-12

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-306.

Summary

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, the Fission storagesvc component registers archive CRUD handlers (/v1/archive GET / POST / DELETE and /v1/archives list) directly on its HTTP router without performing any authentication or authorization. Any caller able to reach the storagesvc ClusterIP — including any other workload in the same Kubernetes cluster — could enumerate archive IDs, download archives belonging to other tenants, upload arbitrary archive content, and delete archives. This issue has been patched in version 1.23.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00344 28th percentileScored 2026-11-07

Fix Fixed fission (fission): 1.23.0github.com/fission/fission (Go): 1.23.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
fission	fission	before 1.23.0	1.23.0	Patch available	CNA
—	github.com/fission/fission (Go)	before 1.23.0	1.23.0	Patch available	GHSA-chf8-4hv6-8pg6

fission Vendorfission Affected before 1.23.0 Fixed in 1.23.0 Patch available CNA
github.com/fission/fission (Go) Vendor— Affected before 1.23.0 Fixed in 1.23.0 Patch available GHSA-chf8-4hv6-8pg6

Remediation

Fix · CNA fission (fission) Fixed in 1.23.0
Fix · GHSA-chf8-4hv6-8pg6 github.com/fission/fission (Go) Fixed in 1.23.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-46612
2026-10-03 Alias added: GHSA-chf8-4hv6-8pg6
2026-10-11 EPSS moved to the 50th–90th percentile
2026-10-25 EPSS moved to the below the 50th percentile

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-46612

Other 5

TI-2026-34271 Improper access control in fission CVSS 3.1CRITICAL 9.8
TI-2026-34273 Improper privilege management in fission CVSS 4.0HIGH 8.7
TI-2026-37288 Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation CVSS 3.1CRITICAL 9.9
TI-2026-37286 Fission Environment CRD podspec passthrough enables hostPID/hostNetwork/privileged pods, node escape CVSS 3.1CRITICAL 9.9
TI-2026-37285 Fission Container Executor Function PodSpec Injection Leading to Node Escape CVSS 3.1CRITICAL 9.9
TI-2026-37268 Fission Environment CRD PodSpec Injection Leading to Node Escape and Cluster Takeover CVSS 3.1CRITICAL 9.9

See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences