openshift: insecure default DNSPolicy for pods
Published Dec 8, 2022
8.1
HIGHCVSS 3.1
EPSS 0.74%
Description
A flaw was found in Openshift. A pod with a DNSPolicy of "ClusterFirst" may incorrectly resolve the hostname based on a service provided. This flaw allows an attacker to supply an incorrect name with the DNS search policy, affecting confidentiality and availability.
Affected products
- Vendor n/a Product Openshift Defaultn/a
- Version 4.9StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Openshift | n/a |
|
No data.
Red Hat OpenShift Container Platform 4
openshift
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat OpenShift Container Platform 4 | openshift | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw was found in OpenShift’s DNS resolution when pods use the ClusterFirst DNS policy. The vulnerability exists due to the way how the DNS search path is expanded, if an attacker creates a namespace with a top-level domain (like com or net) and a service with a matching name, pod DNS queries can get redirected inside the cluster instead of going to the real external domain. This can lead to traffic redirection, allowing data interception (loss of confidentiality) or service disruption (loss of availability).
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Apr 23, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.74% (0.00742) | 53.00th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.72% (0.00716) | 48.75th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.35% (0.00348) | 55.11th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00087) | 38.56th | v3 (v2023.03.01) |
| Jun 30, 2024 | 0.09% (0.00087) | 37.14th | v3 (v2023.03.01) |
| May 20, 2024 | 0.08% (0.00078) | 32.98th | v3 (v2023.03.01) |
| Dec 15, 2023 | 0.07% (0.00074) | 30.79th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.06% (0.00058) | 23.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00048) | 15.14th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Dec 9, 2022 | 0.89% (0.00885) | 27.11th | v2 (v2022.01.01) |
References (4)
- https://access.redhat.com/security/cve/CVE-2022-3262 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2128858 Issue TrackingVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-3262
- https://www.cve.org/CVERecord?id=CVE-2022-3262
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2022-3262 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2128858 | Issue TrackingVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2022-3262 | ||
| https://www.cve.org/CVERecord?id=CVE-2022-3262 |
Change history (0)
No recorded changes yet.