CVE-2026-108728: Flyte 2.0.1 through 2.0.51 Cleartext Secret Exposure via Admission Webhook

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-11 · updated 2026-10-18
Weakness: CWE-312

Description

Flyte 2.0.1 through 2.0.51 contains a cleartext secret storage vulnerability that allows users with Pod read access to obtain secrets by reading init container environment variables. The embedded secret manager webhook writes base64-encoded FILE-mounted secret values into the SECRETS environment variable, letting principals without Secret store access decode them from the Pod spec.

Affected products

flyteorg flyte: from 2.0.1 through 2.0.51

References

https://github.com/flyteorg/flyte
https://github.com/flyteorg/flyte/blob/5986692d3c31d2f2a8a48593219ae6b73644a179/executor/pkg/webhook/handler.go#L168-L189
https://github.com/flyteorg/flyte/blob/5986692d3c31d2f2a8a48593219ae6b73644a179/flyteplugins/go/tasks/pluginmachinery/secret/embedded_secret_manager.go#L389-L394
https://github.com/flyteorg/flyte/blob/5986692d3c31d2f2a8a48593219ae6b73644a179/flyteplugins/go/tasks/pluginmachinery/secret/embedded_secret_manager.go#L531-L546
https://hackmd.io/@haind/flyte-file-secret-pod-spec-disclosure-20261010
https://www.vulncheck.com/advisories/flyte-2.0.1-through-2.0.51-cleartext-secret-exposure-via-admission-webhook

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