Fleet has PSS Bypass through addLabelsFromOptions in Fleet Agent

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

A vulnerability has been identified in Fleet's agent-side deployer, which did not filter security-sensitive keys from namespaceLabels in fleet.yaml (or BundleDeployment.spec.options.namespaceLabels) when applying them to the target namespace. An attacker with git push access to a Fleet-monitored repository could overwrite Pod Security Standards (PSS) enforcement labels on a target namespace. This allows the attacker to weaken admission controls and deploy workloads that PSS policies would otherwise block.

Source published

7 Jul 2026 13:05:03 UTC

Source modified

8 Jul 2026 03:56:44 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

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CVSS 3.1 · 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A vulnerability has been identified in Fleet's agent-side deployer, which did not filter security-sensitive keys from namespaceLabels in fleet.yaml (or BundleDeployment.spec.options.namespaceLabels) when applying them to the target namespace. An attacker with git push access to a Fleet-monitored repository could overwrite Pod Security Standards (PSS) enforcement labels on a target namespace. This allows the attacker to weaken admission controls and deploy workloads that PSS policies would otherwise block.

Source published

Jul 7, 2026, 1:05:03 PM (timezone not stated)

Source modified

Jul 8, 2026, 3:56:44 AM (timezone not stated)

Observed here

7 Nov 2026 10:32:43 UTC

Source terms

ENISA EUVD · source terms and attribution apply

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EUVD CVSS 3.1 · 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A vulnerability has been identified in Fleet's agent-side deployer, which did not filter security-sensitive keys from namespaceLabels in fleet.yaml (or BundleDeployment.spec.options.namespaceLabels) when applying them to the target namespace. An attacker with git push access to a Fleet-monitored repository could overwrite Pod Security Standards (PSS) enforcement labels on a target namespace. This allows the attacker to weaken admission controls and deploy workloads that PSS policies would otherwise block.

Source published

7 Jul 2026 14:16:30 UTC

Source modified

25 Oct 2026 20:10:00 UTC

Observed here

27 Oct 2026 11:12:17 UTC

Source terms

NIST NVD usage terms; underlying source attribution retained

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

### Impact A vulnerability has been identified in Fleet's agent-side deployer, which did not filter security-sensitive keys from `namespaceLabels` in `fleet.yaml` (or `BundleDeployment.spec.options.namespaceLabels`) when applying them to the target namespace. An attacker with `git push` access to a Fleet-monitored repository could overwrite Pod Security Standards (PSS) enforcement labels on a target namespace. This allows the attacker to weaken admission controls and deploy workloads that PSS policies would otherwise block. **Important:** The final impact on confidentiality, integrity, and availability depends on the specific permissions of the leaked credentials. Fleet team recommends you: 1. Review your system for potentially leaked credentials. 2. Replace any credentials that may be compromised. Please consult the associated [MITRE ATT&CK - Technique - Disable or Modify Tools](https://attack.mitre.org/techniques/T1685/) for further information about this category of attack. ### Patches To fix this issue, upgrade to a patched version. The updated Fleet deployer filters out labels with the `pod-security.kubernetes.io/` prefix when applying `namespaceLabels` to a namespace. This change preserves the PSS labels set by cluster administrators and prevents them from being overwritten through `fleet.yaml` or `BundleDeployment` options. Patched versions of Fleet include releases `v0.15.2`, `v0.14.6`, `v0.13.11`, and `v0.12.15`. ### Workarounds If you can’t immediately upgrade to a patched version, use one of the following workarounds: **1 - Deploy NeuVector(primary workaround)** Deploy NeuVector (SUSE Security) and configure an admission control Deny rule for "Run as privileged" in Protect mode. - NeuVector evaluates pod specs independently of Kubernetes PSS namespace labels. It blocks privileged containers even if the labels are downgraded. - Although the namespace labels are still overwritten, the attack cannot exploit confidentiality, integrity, or availability without a privileged pod. **2 - Restrict repository access (secondary workaround)** **Note:** The following measure reduces the attack surface but does not close the vulnerability: - In a multi-tenant setup, this restriction removes the primary attack vector. However, this measure only reduces the attack surface and doesn't completely close the vulnerability. It may also not be operationally viable for all organizations. ´ ### Credits This security issue was reported by the following collaborators according to our responsible disclosure policy: - Radisauskas Arnoldas from NATO and the NATO Cyber Security Centre (NCSC). ### References - Reach out to the [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries. - Open an issue in the [Rancher](https://github.com/rancher/rancher/issues/new/choose) repository. - Verify with our [support matrix](https://www.suse.com/suse-rancher/support-matrix/all-supported-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/).

Source published

1 Jul 2026 20:35:37 UTC

Source modified

7 Jul 2026 16:11:14 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Publisher rating · HIGH

Fleet has PSS Bypass through addLabelsFromOptions in Fleet Agent in github.com/rancher/fleet

Source published

7 Jul 2026 15:26:37 UTC

Source modified

7 Jul 2026 16:00:22 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.