CVE-2026-93538

Cross-tenant BundleDeployment and Secret disclosure via spoofed cluster labels during agent-initiated registration in Fleet

A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated cluster registration, cluster labels supplied by the registering agent, including labels in the reserved management.cattle.io/ namespace such as the cluster display name label, were applied to the resulting upstream Cluster object. Because Fleet resolves GitRepo and Bundle targets from those cluster labels, a party able to register a cluster into a Fleet workspace namespace shared with other tenants could cause its own cluster to satisfy targeting rules that administrators intended for a different cluster. This affects SUSE Rancher Fleet 0.16 before 0.16.1, 0.15 before 0.15.6, 0.14 before 0.14.10, 0.13 before 0.13.15, 0.12 before 0.12.19 and older versions.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Rancher Rancher Fleet

CVE-2026-93539

Unauthenticated GitRepo Spec Mutation via Fleet Git Webhook Receiver

A vulnerability was discovered in Fleet's Git webhook receiver (the gitjob webhook service). When a webhook secret is not configured, incoming webhook requests are accepted without verification, and processing a request can change the spec.pollingInterval field of a matching GitRepo resource in any namespace. A caller with network access to the webhook service and no Kubernetes credentials can therefore alter GitRepo configuration outside the namespaces they are authorized for.  This only affects SUSE Rancher Fleet 0.16 before 0.16.2, older versions are not affected.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Rancher Rancher Fleet

CVE-2026-93540

Fleet applies namespace labels and annotations without the bundle's service account privileges

A privilege mismatch was found in Fleet. When a bundle requested namespace labels or annotations through the namespaceLabels and namespaceAnnotations options, the resulting namespace metadata update was not subject to the same authorization as the rest of the bundle's deployment. As a result, a bundle could change labels and annotations on a target namespace even when the identity it was pinned to was not authorized to modify that namespace. This affected SUSE Rancher Fleet 0.16 before 0.16.2, 0.15 before 0.15.7, 0.14 before 0.14.11, 0.13 before 0.13.16 and potentially older versions.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Rancher Rancher Fleet

CVE-2026-88808

Fleet agent copies downstream resources with cluster-admin privileges, allowing cross-namespace writes on downstream clusters

A vulnerability has been identified within Rancher Manager where the Fleet agent wrote resources to downstream clusters using its own cluster-admin credentials instead of the ServiceAccount pinned to the deployment. It affects multi-tenancy environments where different tenants share the same downstream clusters, for example different privileged or untrusted teams inside the same organization. This could lead to overwritten configuration files. This issue affected SUSE Rancher Fleet 0.16 before 0.16.2, 0.15 before 0.15.7, and 0.14 before 0.14.11.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Rancher Rancher Fleet

CVE-2026-75036

Fleet: DNS exfiltration via Sprig getHostByName in fleet.yaml Helm template preprocessing

A security vulnerability was discovered in Fleet's Helm template preprocessing where templates evaluated by the Fleet controller could reach network resources outside the management cluster. A user who can supply bundle content to a repository referenced by a `GitRepo` resource can cause the Fleet controller to: - Disclose cluster metadata available to the templating context. - Reveal information about hosts reachable from the controller's network position. Because the disclosure channel is name resolution, it may remain effective in environments where outbound traffic is otherwise restricted. The disclosed information is limited to values exposed to the Fleet templating context and to name resolution results. Integrity and availability of managed clusters are not affected. This issue affects Fleet: from 0.12.0 before 0.12.19, from 0.13.0 before 0.13.15, from 0.14.0 before 0.14.10, from 0.15.0 before 0.15.6, and from 0.16.0 before 0.16.1.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Fleet Rancher Fleet

CVE-2026-44940

Service token exposure and potential privilege escalation in SUSE Observability

The rancher-extension-stackstate extension in SUSE Observability exposes service tokens in plain configuration or insecure locations rather than managing them securely. An attacker with minimal access could obtain the token to gain unauthorized access or escalate privileges within the observability environment.

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Suse Observability

CVE-2026-88805

Session Not Revoked Server-Side on Logout in Rancher

Incorrect credential cleaning on logout could be used by remote attackers to keep access credentials even after the account was logged out. Affected is SUSE Rancher 2.15 before 2.15.2.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Rancher

CVE-2026-88804

Unauthenticated update of public UI settings leading to stored cross-site scripting in Rancher

An unauthenticated update of public UI settings could be used by remote attackers to execute a stored cross-site scripting attack in the Rancher UI, in SUSE Rancher 2.15 before 2.15.2, 2.14 before 2.14.6, 2.13 before 2.13.10, 2.12 before 2.12.14 and 2.11 before 2.11.18.

CVSS 3.1 · 9.6 Critical EPSS 1.0% KEV · Not listed

Vendors

Suse

Products

Rancher

CVE-2026-78424

OS Command Injection in Packet-Capture (Sniffer) Filter leading to Remote Code Execution on Kubernetes Nodes

Improper parameter handling in NeuVector allows any authenticated user who holds the namespaced Runtime Policies (write) permission or anyone with access to NeuVector’s internal gRPC certificate key pair the ability to inject OS commands in the privileged enforcer container, which can lead to the complete compromise of the worker node. This affects NeuVector 5.4 before 5.4.11, NeuVector 5.5 before 5.5.4, NeuVector 5.6 before 5.6.2 and potentially older versions.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Neuvector

CVE-2026-78428

Flaw in Neuvector can result in one user receiving another user's authenticated session when multiple SSO login attempts occur concurrently

For users authenticated through SAML or OpenID Connect (OIDC), this vulnerability can result in one user receiving another user's authenticated session when multiple SSO login attempts occur concurrently

CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Go Suse

Products

Neuvector Neuvector

CVE-2026-78427

Admission Control Bypass via Hardcoded Sidecar Image Exemption

The NeuVector admission webhook silently excludes containers from policy evaluation when their image path matches one of three hardcoded service mesh sidecar images. Since the image path is entirely controlled by the workload author, any user capable of deploying workloads can evade admission deny rules simply by naming their image path after one of these sidecar images.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Neuvector Suse

Products

Neuvector Github.com Neuvector Neuvector

CVE-2026-78426

Logout bypass via alternate JWT spelling

The NeuVector JWT verifier accepts noncanonical Base64URL encodings of the same RSA signature field. An attacker holding a valid JWT that has not expired, but was logged out of NeuVector, can continue using the non-expired token with equivalent spelling of the RSA signature field until the token validity expires.

CVSS 4.0 · 2 Low EPSS < 1% KEV · Not listed

Vendors

Go Suse

Products

Neuvector Neuvector

CVE-2026-78425

SAML Audience Confusion Allows Cross-SP Authentication

Authorised users of outside applications behind the same corporate identity provider (IdP), for example, a wiki, a ticketing system, an expenses tool, or anything they legitimately hold an account on can log into their system via SAML SSO. The IdP issues an assertion to them. If that assertion is presented to NeuVector, NeuVector accepts it because the only thing distinguishing "an assertion for NeuVector" from "an assertion for the wiki" is the element, and the `NotInAudience` warning that reports the mismatch is never read.

CVSS 4.0 · 7.6 High EPSS < 1% KEV · Not listed

Vendors

Neuvector Suse

Products

Neuvector Github.com Neuvector Neuvector

CVE-2026-71403

Rancher: Identity-field mutation in /v3/users allows account hijack via principal rebind

A flaw was found in Rancher Manager. The /v3/users update path did not enforce immutability of a User resource's `username` and `principalIds` fields. A user holding the `update` verb on `users.management.cattle.io` could inject a foreign identity provider principal into any account, so that the next login by the owner of that principal was bound to the victim's account and inherited its role bindings. This issue affects Rancher: before 2.15.1.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Rancher

CVE-2026-71404

Rancher: Ownership-less ClusterRole overwrite via attacker-controlled cr-name annotation on GlobalRole

A flaw was found in Rancher Manager. The GlobalRole controller derived the target ClusterRole name from the user-settable `authz.management.cattle.io/cr-name` annotation and overwrote that object's rules without verifying ownership. A user with delegated GlobalRole create or update permission could point the annotation at any existing ClusterRole, such as `cluster-admin`, and revoke the permissions of every principal bound to it. The change persists after the malicious GlobalRole is deleted. This issue affects Rancher: before 2.15.1.

CVSS 3.1 · 8.7 High EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Rancher

CVE-2026-75033

Rancher: Cross-Cluster Secret Leakage via Namespace projectId Annotation Spoofing

A flaw was found in Rancher Manager. Project Secrets were propagated into a namespace based only on its `field.cattle.io/projectId` annotation, without verifying that the referenced project belonged to the same downstream cluster. A user able to create namespaces on one cluster could set the annotation to a project ID from another cluster and have that project's secrets copied into a namespace under their control. This issue affects Rancher: before 2.15.1.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Rancher

CVE-2026-75035

Rancher: ext.cattle.io/v1 Token store: cross-user token disclosure via label-selector scoping bypass

A flaw was found in Rancher Manager. When a non-administrative caller supplied a label selector naming a different user, the ext.cattle.io/v1 Token store dropped its internal owner filter instead of returning an empty result. Any authenticated user could therefore list and watch every other user's tokens, disclosing token metadata and the stored salted hash of the bearer token. This issue affects Rancher: before 2.15.1.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Rancher

CVE-2025-46808

Sensitive information is leaked into NeuVector’s manager container logs

An Insertion of Sensitive Information into Log File vulnerability in SUSE neuvector manager exposes sensitive information into the manager container’s log This issue affects neuvector: before 5.4.5.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Neuvector

CVE-2026-31431

crypto: algif_aead - Revert to operating out-of-place

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.

CVSS 3.1 · 7.8 High EPSS 98.1% KEV · Listed

Vendors

Amazon Arista Canonical and 7 more

Products

Amazon Linux Cloudvision Agni Cloudvision Portal and 57 more

CVE-2026-71401

wicked: integer underflow of the UDP length in ni_capture_inspect_udp_header() leads to an out-of-bounds read

An integer underflow was found in the DHCPv4 packet capture code of wicked. ni_capture_inspect_udp_header() in src/capture.c does not verify that the IP total length field (ip_len) is at least as large as the IP header length (ihl) before subtracting the header length. An unauthenticated attacker on the same network can thereby trigger an out-of-bounds read past the receive buffer in the wicked DHCPv4 client (wickedd-dhcp4), which can crash the daemon depending on the process memory layout. No information disclosure has been demonstrated. This issue affects wicked up to and including version 0.6.80.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Suse

Products

Wicked