How serious is CVE-2026-29773?

This vulnerability has a CVSS score of 4.3 out of 10, classified as MEDIUM severity. No public exploit code has been identified yet.

Which products are affected by CVE-2026-29773?

Check the official CVE details for a complete list of affected products and versions.

How do I fix CVE-2026-29773?

To remediate CVE-2026-29773, check for security patches from the vendor. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-29773

Medium

|4.3

No Exploit

Plain English Summary

AI-powered analysis for quick understanding

An attacker with special permissions can exploit a flaw in Kubewarden to read sensitive information about Ingresses, Namespaces, and Services in a Kubernetes cluster. This requires the attacker to have been granted specific "AdmissionPolicy" create permissions, which are not typically given by default.

Technical Description

Kubewarden is a policy engine for Kubernetes. Kubewarden cluster operators can grant permissions to users to deploy namespaced AdmissionPolicies and AdmissionPolicyGroups in their Namespaces. One of Kubewarden promises is that configured users can deploy namespaced policies in a safe manner, without privilege escalation. An attacker with privileged "AdmissionPolicy" create permissions (which isn't the default) could make use of 3 deprecated host-callback APIs: kubernetes/ingresses, kubernetes/namespaces, kubernetes/services. The attacker can craft a policy that exercises these deprecated API calls and would allow them read access to Ingresses, Namespaces, and Services resources respectively. This attack is read-only, there is no write capability and no access to Secrets, ConfigMaps, or other resource types beyond these three.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Confidentiality ImpactLow

Integrity ImpactNone

Availability ImpactNone

ScopeUnchanged

Vector String

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

Exploit Resources

Search for proof-of-concept code and exploit modules

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Official References

NIST NVD

Est. Bounty

$552($500-$1K)

Vendor Response

Grade APatched in 0 days

Quick Information

Published

Mar 10, 2026

28 days ago

Last Modified

Mar 11, 2026

27 days ago