fission has 16 CVEs on record. Disclosure cadence is accelerating: 14 in the last 90 days against 2 in the 90 before. The busiest recent month was June 2026 with 10. The median CVSS is 8.1 (high), with 4 rated critical. None have a confirmed exploitation report. The dominant weakness classes are CWE-269 (7) and CWE-284 (7).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 8.1
- Publish → KEV
- —
- Last 90 days
- 14 prev 2
Worst active — by depth score
CVE-2026-50566Critical· 9.9Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation55CVE-2026-50564Critical· 9.9Fission Environment CRD podspec passthrough enables hostPID/hostNetwork/privileged pods, node escape55CVE-2026-50563Critical· 9.9Fission Container Executor Function PodSpec Injection Leading to Node Escape55CVE-2026-50545Critical· 9.9Fission Environment CRD PodSpec Injection Leading to Node Escape and Cluster Takeover55CVE-2026-46612High· 8.8Fission StorageSvc /v1/archive endpoint exposes unauthenticated CRUD over all function archives48
fission vulnerabilities
CVEs affecting fission, newest first. Open any entry for full detail, references, and exploit status.
16 CVEsRSS
CVE-2026-50570High· 8.5Fission: Incomplete capability denylist in Environment/Function PodSpec validation allows tenant-added CAP_SYS_TIME and cross-tenant node wall-clock corruption
Fission: Incomplete capability denylist in Environment/Function PodSpec validation allows tenant-added CAP_SYS_TIME and cross-tenant node wall-clock corruption
CVE-2026-50569Medium· 4.3Fission: HTTPTrigger admission omits RelativeURL / Prefix validation; kubectl apply bypasses CLI checks
Fission: HTTPTrigger admission omits RelativeURL / Prefix validation; kubectl apply bypasses CLI checks
CVE-2026-50567High· 7.7Fission: Zip Slip in pkg/utils/zip.go:Unarchive allows fetcher to write outside the destination directory
Fission: Zip Slip in pkg/utils/zip.go:Unarchive allows fetcher to write outside the destination directory
CVE-2026-50568Low· 3.6Fission: SanitizeFilePath lexical HasPrefix bypass permits sibling-directory escape
Fission: SanitizeFilePath lexical HasPrefix bypass permits sibling-directory escape
GHSA-7m8x-qg2j-4m3vHigh· 8.1Fission: MessageQueueTrigger scaler manager materializes Secret values into Deployment envvars and accepts arbitrary user PodSpec
Fission: MessageQueueTrigger scaler manager materializes Secret values into Deployment envvars and accepts arbitrary user PodSpec
CVE-2026-49821High· 7.7Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration
Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration
CVE-2026-49822High· 7.7Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance
Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance
CVE-2026-49823High· 7.7Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook
Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook
CVE-2026-49824High· 8.5Fission: Cross-namespace Environment reference via unvalidated EnvironmentRef in Function admission webhook
Fission: Cross-namespace Environment reference via unvalidated EnvironmentRef in Function admission webhook
CVE-2026-50545Critical· 9.9Fission Environment CRD PodSpec Injection Leading to Node Escape and Cluster Takeover
Fission Environment CRD PodSpec Injection Leading to Node Escape and Cluster Takeover
CVE-2026-50563Critical· 9.9Fission Container Executor Function PodSpec Injection Leading to Node Escape
Fission Container Executor Function PodSpec Injection Leading to Node Escape
CVE-2026-50564Critical· 9.9Fission Environment CRD podspec passthrough enables hostPID/hostNetwork/privileged pods, node escape
Fission Environment CRD podspec passthrough enables hostPID/hostNetwork/privileged pods, node escape
CVE-2026-50565Medium· 4.9Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container
Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container
CVE-2026-50566Critical· 9.9Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation
Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation
CVE-2026-46612High· 8.8Fission StorageSvc /v1/archive endpoint exposes unauthenticated CRUD over all function archives
Fission StorageSvc /v1/archive endpoint exposes unauthenticated CRUD over all function archives
CVE-2026-46617HighFission runtime pods automount the fission-fetcher service-account token into the user function container, granting function code names…
Fission runtime pods automount the fission-fetcher service-account token into the user function container, granting function code namespace-wide secret / configmap read