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CVE-2026-15809

A flaw was found in CRI-O. The fix for a previous vulnerability (CVE-2022-4318) was incorrect, allowing it to be bypassed. An attacker capable of setting environment variables on a container can inject a newline character into the HOME environment variable. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8def36a9344d0724f59331718f2fc651db445a57d472db4afb0c17a4c280e948
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 4 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:confidential_compute_attestation:1"],"defaultStatus":"affected","packageName":"openshift-sandboxed-containers/osc-monitor-rhel9","product":"Confidential Compute Attestation","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ztp-site-generate-rhel8","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"cri-o","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/cnf-tests-rhel8","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/affected/2
cwe · 2 assertions

{"cweId":"CWE-116","description":"CWE-116 Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/adp/0/problemTypes/0/descriptions/0

{"cweId":"CWE-134","description":"Use of Externally-Controlled Format String","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

4 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:confidential_compute_attestation:1"],"defaultStatus":"affected","packageName":"openshift-sandboxed-containers/osc-monitor-rhel9","product":"Confidential Compute Attestation","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ztp-site-generate-rhel8","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"cri-o","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/cnf-tests-rhel8","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/affected/2

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-116","description":"CWE-116 Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/adp/0/problemTypes/0/descriptions/0
{"cweId":"CWE-134","description":"Use of Externally-Controlled Format String","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-15809"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/references/0
{"name":"RHBZ#2500846","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2500846"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/references/1
{"url":"https://github.com/cri-o/cri-o/pull/6450"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/references/2
{"url":"https://github.com/cri-o/cri-o/pull/6524"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f6091a0f3bde6339be3a10ded7275929a01647bd8a2811ac13efe2ff081b2e0b · sha256:c024d77c4c6d661d… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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