CVE-2026-44935

The vulnerability (CVE-2026-44935) affects SUSE Rancher Fleet’s Helm Deployer where missing validation of valuesFrom references enables cross-tenant access to fleet credentials stored in secrets/config maps on downstream clusters. Affected versions include Fleet 0.15.x before 0.15.2, 0.14.x befor...

CVE-2026-44935

Missing validation of "valuesFrom" references in Helm Deployer of SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.15 could be used by owners of one tenant to access fleet credentials of other tenants...

CVE-2026-44935 Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer

Missing validation of "valuesFrom" references in Helm Deployer of SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.15 could be used by owners of one tenant to access fleet credentials of other tenants...

CVE-2026-44935 Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer

Missing validation of "valuesFrom" references in Helm Deployer of SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.15 could be used by owners of one tenant to access fleet credentials of other tenants...

GHSA-XR65-5CPM-G36X Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer

Impact A vulnerability in Fleet for Rancher Manager affects multi-tenancy environments where different tenants share the same downstream clusters e.g., different privileged or untrusted teams inside the same organization. On unpatched versions, tenants could bypass restrictions to access any conf...

Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer

Impact A vulnerability in Fleet for Rancher Manager affects multi-tenancy environments where different tenants share the same downstream clusters e.g., different privileged or untrusted teams inside the same organization. On unpatched versions, tenants could bypass restrictions to access any conf...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the helm.repo process when the helmRepoURLRegex field is not set on a GitRepo resource. An attacker with git push access to a monitored repository can cause the system to forward Helm authentication...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the helm.repo process when the helmRepoURLRegex field is not set on a GitRepo resource. An attacker with git push access to a monitored repository can cause the system to forward Helm authentication...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the helm.repo process when the helmRepoURLRegex field is not set on a GitRepo resource. An attacker with git push access to a monitored repository can cause the system to forward Helm authentication...

Rancher Fleet has SSRF in Bundle Reader via Unvalidated Helm Repository URL in fleet.yaml

Impact A vulnerability has been identified in Fleet when the helmRepoURLRegex field isn't set on a GitRepo resource. Fleet's bundle reader forwards Helm authentication credentials BasicAuth to any URL specified in the helm.repo field of a fleet.yaml file. An attacker with git push access to a...

Rancher Fleet has Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components

Impact A vulnerability has been identified in Fleet when the webhook endpoint is configured without a secret; an attacker can forge webhook requests. The attacker doesn't need to know the specific repository or path configured in the GitRepo resource to make Fleet process these requests. An...

GHSA-864G-863M-VCVQ Fleet has PSS Bypass through addLabelsFromOptions in Fleet Agent

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 has PSS Bypass through addLabelsFromOptions in Fleet Agent

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...

Insufficiently Protected Credentials

Overview Affected versions of this package are vulnerable to Insufficiently Protected Credentials via the addLabelsFromOptions function. An attacker can overwrite security-sensitive namespace labels by pushing changes to a monitored repository, thereby weakening admission controls and enabling...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the upload endpoint. An attacker can exhaust system memory by submitting specially crafted requests, potentially causing the service to become unavailable. Remediation Upgrade...

Allocation of Resources Without Limits or Throttling

Overview github.com/elastic/fleet-server/internal/pkg/api is a control server to manage a fleet of elastic-agents. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the upload endpoint. An attacker can exhaust system memory by submitting...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the upload endpoint. An attacker can exhaust system memory by submitting specially crafted requests, potentially causing the service to become unavailable. Remediation Upgrade...

Allocation of Resources Without Limits or Throttling

Overview github.com/elastic/fleet-server/v7/internal/pkg/api is a control server to manage a fleet of elastic-agents. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the upload endpoint. An attacker can exhaust system memory by submitti...

CVE-2026-56151

Improper Input Validation CWE-20 in Kibana can lead to a denial of service via Input Data Manipulation CAPEC-153. An authenticated user can submit a specially crafted Fleet policy input that is not correctly validated, which can render Fleet agent, server, and policy management functionality...

CVE-2026-56150

Allocation of Resources Without Limits or Throttling CWE-770 in Fleet Server can lead to a denial of service via Excessive Allocation CAPEC-130. An attacker can submit a specially crafted request to an upload endpoint that causes excessive memory consumption, which may render Fleet Server...