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CVE-2026-17113
Published:August 24, 2026
Updated:September 24, 2026
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 Packages
https://github.com/cri-o/cri-o.git (GITHUB):
Affected version(s) >=v1.35.0 <v1.35.7
Fix Suggestion:
Update to version v1.35.7
https://github.com/cri-o/cri-o.git (GITHUB):
Affected version(s) >=v1.34.0 <v1.34.12
Fix Suggestion:
Update to version v1.34.12
https://github.com/cri-o/cri-o.git (GITHUB):
Affected version(s) >=v1.36.0 <v1.36.4
Fix Suggestion:
Update to version v1.36.4
github.com/cri-o/cri-o (GO):
Affected version(s) >=v1.34.0 <v1.34.12
Fix Suggestion:
Update to version v1.34.12
github.com/cri-o/cri-o (GO):
Affected version(s) >=v1.36.0 <v1.36.4
Fix Suggestion:
Update to version v1.36.4
github.com/cri-o/cri-o (GO):
Affected version(s) >=v1.35.0 <v1.35.7
Fix Suggestion:
Update to version v1.35.7
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CVSS v4
Base Score:
8.1
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
HIGH
CVSS v3
Base Score:
6
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Validation of Specified Type of Input
EPSS
Base Score:
0.11