Bug 2506872 (CVE-2026-17113)

Summary: CVE-2026-17113 cri-o: CRI-O: unvalidated image env var causes daemon crash
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, security-response-team, sghai, sidsharm, suppawar, vlaad
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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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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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2523491, 2523492, 2523493, 2523494, 2523495, 2523496, 2523497, 2523499    
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Description OSIDB Bzimport 2026-07-24 17:36:00 UTC 
A flaw was found in CRI-O, the container runtime. Under a specific internal condition, CRI-O skips checking whether a container image's environment variable settings are properly formatted before using them. If an image contains a malformed environment variable, CRI-O crashes while trying to process it.