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CVE-2026-17113
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.
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The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker needs high-level or administrative privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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