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CVE-2026-17113

Cri-o: cri-o: unvalidated image env var causes daemon crash PUBLISHED

Description (CNA)

A flaw was found in CRI-O's container-creation environment-variable handling (`mergeEnvs` in `server/utils.go`, consumed by `setupContainerEnvironmentAndWorkdir` in `server/container_create.go`). When a `CreateContainer` request supplies a `nil` CRI `Envs` field, CRI-O falls back to using the target OCI image's `config.Env` entries unfiltered, in contrast to the normal merge path, which validates each entry for a `key=value` form before use. An OCI image whose `config.Env` contains an entry with no `=` character (e.g. a bare `NOEQUALS` string) causes CRI-O to split that entry into a single-element slice and then index its second element, which is out of range. This triggers an unrecovered Go runtime panic in the `crio` daemon process, crashing it and terminating the container-runtime service for all workloads on the node until it is restarted.

Affected (CNA)

Vendor / productVersions
Not supplied / Not suppliedaffected 0 before 1.34.11; affected 0 before 1.35.7; affected 0 before 1.36.3
Red Hat / Red Hat OpenShift Container Platform 4affected
Red Hat / Red Hat OpenShift Container Platform 4affected
Red Hat / Red Hat OpenShift Container Platform 4affected
Red Hat / Red Hat OpenShift Container Platform 4affected

CWE

CWE-1287

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.