{"id":"CVE-2026-17113","state":"PUBLISHED","title":"Cri-o: cri-o: unvalidated image env var causes daemon crash","description":"A flaw was found in CRI-O's container-creation environment-variable handling\n(`mergeEnvs` in `server/utils.go`, consumed by `setupContainerEnvironmentAndWorkdir` in\n`server/container_create.go`). When a `CreateContainer` request supplies a `nil` CRI\n`Envs` field, CRI-O falls back to using the target OCI image's `config.Env` entries\nunfiltered, in contrast to the normal merge path, which validates each entry for a\n`key=value` form before use. An OCI image whose `config.Env` contains an entry with no\n`=` character (e.g. a bare `NOEQUALS` string) causes CRI-O to split that entry into a\nsingle-element slice and then index its second element, which is out of range. This\ntriggers an unrecovered Go runtime panic in the `crio` daemon process, crashing it and\nterminating the container-runtime service for all workloads on the node until it is\nrestarted.","publishedAt":"2026-08-24T21:22:49.638Z","updatedAt":"2026-10-21T20:12:46.564Z","severity":{"score":6,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H","source":"redhat"},"assigner":"redhat","products":["cri-o","Red Hat Red Hat OpenShift Container Platform 4"],"affected":[{"packageName":"cri-o","versions":[{"version":"0","status":"affected","lessThan":"1.34.11","versionType":"semver"},{"version":"0","status":"affected","lessThan":"1.35.7","versionType":"semver"},{"version":"0","status":"affected","lessThan":"1.36.3","versionType":"semver"}],"collectionURL":"https://github.com/cri-o/cri-o"},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","packageName":"cri-o","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","packageName":"openshift/ose-rhel-coreos-8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","packageName":"openshift/ose-rhel-coreos-9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","packageName":"rhcos","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"]}],"references":["https://access.redhat.com/security/cve/CVE-2026-17113","https://bugzilla.redhat.com/show_bug.cgi?id=2506872"],"weaknesses":["CWE-1287"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/17xxx/CVE-2026-17113.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-17113","state":"PUBLISHED","datePublished":"2026-08-24T21:22:49.638Z","dateUpdated":"2026-10-21T20:12:46.564Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2026-07-24T15:50:17.184Z"},"containers":{"cna":{"title":"Cri-o: cri-o: unvalidated image env var causes daemon crash","descriptions":[{"lang":"en","value":"A flaw was found in CRI-O's container-creation environment-variable handling\n(`mergeEnvs` in `server/utils.go`, consumed by `setupContainerEnvironmentAndWorkdir` in\n`server/container_create.go`). When a `CreateContainer` request supplies a `nil` CRI\n`Envs` field, CRI-O falls back to using the target OCI image's `config.Env` entries\nunfiltered, in contrast to the normal merge path, which validates each entry for a\n`key=value` form before use. An OCI image whose `config.Env` contains an entry with no\n`=` character (e.g. a bare `NOEQUALS` string) causes CRI-O to split that entry into a\nsingle-element slice and then index its second element, which is out of range. This\ntriggers an unrecovered Go runtime panic in the `crio` daemon process, crashing it and\nterminating the container-runtime service for all workloads on the node until it is\nrestarted."}],"affected":[{"packageName":"cri-o","versions":[{"version":"0","status":"affected","lessThan":"1.34.11","versionType":"semver"},{"version":"0","status":"affected","lessThan":"1.35.7","versionType":"semver"},{"version":"0","status":"affected","lessThan":"1.36.3","versionType":"semver"}],"collectionURL":"https://github.com/cri-o/cri-o"},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","packageName":"cri-o","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","packageName":"openshift/ose-rhel-coreos-8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","packageName":"openshift/ose-rhel-coreos-9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","packageName":"rhcos","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-17113","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2506872","name":"RHBZ#2506872","tags":["issue-tracking","x_refsource_REDHAT"]}],"metrics":[{"other":{"content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1287","description":"Improper Validation of Specified Type of Input","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2026-10-21T20:12:46.564Z"},"datePublic":"2026-08-24T20:52:00.000Z","x_redhatCweChain":"CWE-1287: Improper Validation of Specified Type of Input","timeline":[{"lang":"en","time":"2026-07-19T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-08-24T20:52:00.000Z","value":"Made public."}],"credits":[{"lang":"en","value":"Red Hat would like to thank Arpit Jain for reporting this issue."}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T14:27:12.642586Z","id":"CVE-2026-17113","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T14:36:20.534Z"}}]}}}