Cri-o: pods are able to break out of resource confinement on cgroupv2
A flaw was found in CRI-O that involves an experimental annotation leading to a container being unconfined. This may allow a pod to specify and get any amount of memory/cpu, circumventing the kubernetes scheduler and potentially resulting in a denial of service in the node.
- Published
- Jan 9, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.9% · 57th percentile
- CWE
- CWE-770
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Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.9%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.5
- CNA · redhat
- 6.5
- 1.0 point gap
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| redhat | openshift container platform | cpe:2.3:a:redhat:openshift_container_platform |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- redhat openshift container platform3.11
- redhat openshift container platform4.13
- redhat openshift container platform4.14
Versions reported by the vendor
Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.
Red Hat Red Hat OpenShift Container Platform 3.11
- all versionsunknown
Red Hat Red Hat OpenShift Container Platform 4.13
- 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el9 and laternot affected · rpm
Red Hat Red Hat OpenShift Container Platform 4.14
- 0:1.27.2-7.rhaos4.14.git1cc7a64.el9 and laternot affected · rpm
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Go | github.com/cri-o/cri-o | from 1.28.0 · before 1.28.3 | 1.28.3 |
| Go | github.com/cri-o/cri-o | from 1.29.0 · before 1.29.1 | 1.29.1 |
| Go | github.com/cri-o/cri-o | before 1.27.3 | 1.27.3 |
| Red Hat:openshift:4.13::el8 | cri-o | before 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el8 | 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el8 |
| Red Hat:openshift:4.13::el8 | cri-o-debuginfo | before 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el8 | 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el8 |
| Red Hat:openshift:4.13::el8 | cri-o-debugsource | before 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el8 | 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el8 |
| Red Hat:openshift:4.13::el9 | cri-o | before 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el9 | 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el9 |
| Red Hat:openshift:4.13::el9 | cri-o-debuginfo | before 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el9 | 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el9 |
| Red Hat:openshift:4.13::el9 | cri-o-debugsource | before 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el9 | 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el9 |
| Red Hat:openshift:4.14::el8 | cri-o | before 0:1.27.2-7.rhaos4.14.git1cc7a64.el8 | 0:1.27.2-7.rhaos4.14.git1cc7a64.el8 |
| Red Hat:openshift:4.14::el8 | cri-o-debuginfo | before 0:1.27.2-7.rhaos4.14.git1cc7a64.el8 | 0:1.27.2-7.rhaos4.14.git1cc7a64.el8 |
| Red Hat:openshift:4.14::el8 | cri-o-debugsource | before 0:1.27.2-7.rhaos4.14.git1cc7a64.el8 | 0:1.27.2-7.rhaos4.14.git1cc7a64.el8 |
| Red Hat:openshift:4.14::el9 | cri-o | before 0:1.27.2-7.rhaos4.14.git1cc7a64.el9 | 0:1.27.2-7.rhaos4.14.git1cc7a64.el9 |
| Red Hat:openshift:4.14::el9 | cri-o-debuginfo | before 0:1.27.2-7.rhaos4.14.git1cc7a64.el9 | 0:1.27.2-7.rhaos4.14.git1cc7a64.el9 |
| Red Hat:openshift:4.14::el9 | cri-o-debugsource | before 0:1.27.2-7.rhaos4.14.git1cc7a64.el9 | 0:1.27.2-7.rhaos4.14.git1cc7a64.el9 |
Same product
redhat: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-7481Ansible before versions 2.3.1.0 and 2.4.0.0 fails to properly mark lookup-plugin results as unsafe.40Plan
- CVE-2018-1085openshift-ansible before versions 3.9.23, 3.7.46 deploys a misconfigured etcd file that causes the SSL client certificate authentication to 40Plan
- CVE-2020-27836A flaw was found in cluster-ingress-operator.39Monitor
- CVE-2019-3899It was found that default configuration of Heketi does not require any authentication potentially exposing the management interface to misus39Monitor
- CVE-2026-54099Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters35Monitor
- CVE-2026-1784Ose-cluster-ingress-operator: remote code execution through haproxy configuration injection35Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Go:github.com/cri-o/cri-o | 1.27.3 | Package registry (OSV) |
| Go:github.com/cri-o/cri-o | 1.28.3 | Package registry (OSV) |
| Go:github.com/cri-o/cri-o | 1.29.1 | Package registry (OSV) |
| red hat:cri-o | 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el8 · Red Hat:openshift:4.13::el8 | Package registry (OSV) |
| red hat:cri-o-debuginfo | 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el8 · Red Hat:openshift:4.13::el8 | Package registry (OSV) |
| red hat:cri-o-debugsource | 0:1.26.4-6.1.rhaos4.13.git9eb9cf3.el8 · Red Hat:openshift:4.13::el8 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2024-50311287 days apartGraphql: denial of service (dos) vulnerability via graphql batching26Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-770 · Allocation of Resources Without Limits or ThrottlingCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- FloodingCAPEC-125likelihood: High · Medium
- Excessive AllocationCAPEC-130likelihood: Medium · Medium
- XML Ping of the DeathCAPEC-147likelihood: Low · Medium
- Exponential Data ExpansionCAPEC-197likelihood: High · Medium
- Serialized Data Parameter BlowupCAPEC-229likelihood: High · High
- Serialized Data with Nested PayloadsCAPEC-230likelihood: Medium · High
- Oversized Serialized Data PayloadsCAPEC-231likelihood: Medium · High
- HTTP DoSCAPEC-469Low
ATT&CK techniques
- Network Denial of Service:Direct Network FloodT1498.001
- Network Denial of Service:Reflection AmplificationT1498.002
- Endpoint Denial of ServiceT1499
- Endpoint Denial of Service: OS Exhaustion FloodT1499.001
- Endpoint Denial of Service:Service Exhaustion FloodT1499.002
- Endpoint Denial of Service:Application Exhaustion FloodT1499.003
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- access.redhat.com/errata/RHSA-2024:0195
- access.redhat.com/errata/RHSA-2024:0207
- access.redhat.com/security/cve/CVE-2023-6476
- bugzilla.redhat.com/show_bug.cgi?id=2253994
Vendor advisories and official records. Exploit/PoC links are deliberately left out.