---
title: "CVE-2025-29922: kcp allows unauthorized creation and deletion of objects in arbitrary workspaces through APIExport Virtual Workspace"
url: https://erroneo.us/security/cve/CVE-2025-29922/
description: "CVE-2025-29922 (github.com/kcp-dev/kcp (Go)): kcp is a Kubernetes-like control plane for form-factors and use-cases beyond Kubernetes and container…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-03-20
date_modified: 2025-03-20
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-29922"
kev: false
cvss: 9.6
epss: 0.00377
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-29922: kcp allows unauthorized creation and deletion of objects in arbitrary workspaces through APIExport Virtual Workspace

**Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.4% , percentile 30: FIRST’s model estimates a 0.4% chance of exploitation activity in the next 30 days, higher than 30% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes github.com/kcp-dev/kcp (Go) < 0.26.3, fixed in 0.26.3 . Check your lockfile, including transitive dependencies.

## What it is

kcp is a Kubernetes-like control plane for form-factors and use-cases beyond Kubernetes and container workloads. Prior to 0.26.3, the identified vulnerability allows creating or deleting an object via the APIExport VirtualWorkspace in any arbitrary target workspace for pre-existing resources. By design, this should only be allowed when the workspace owner decides to give access to an API provider by creating an APIBinding. With this vulnerability, it is possible for an attacker to create and delete objects even if none of these requirements are satisfied, i.e. even if there is no APIBinding in that workspace at all or the workspace owner has created an APIBinding, but rejected a permission claim. A fix for this issue has been identified and has been published with kcp 0.26.3 and 0.27.0.

## Affected packages

- Go `github.com/kcp-dev/kcp` < 0.26.3 → fixed: 0.26.3

## Affected products (CVE record)

- kcp-dev kcp: < 0.26.3

## Severity

- GitHub_M CVSS 3.1: 9.6 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N`
- GitHub CVSS 3.1: 9.6 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.38% probability of exploitation activity in the next 30 days; percentile 30.

## Sources

- [GitHub Advisory GHSA-w2rr-38wv-8rrp](https://github.com/advisories/GHSA-w2rr-38wv-8rrp)
- [CVE.org record CVE-2025-29922](https://www.cve.org/CVERecord?id=CVE-2025-29922)
- [NVD entry CVE-2025-29922](https://nvd.nist.gov/vuln/detail/CVE-2025-29922)
- [github.com](https://github.com/kcp-dev/kcp/security/advisories/GHSA-w2rr-38wv-8rrp)
- [github.com](https://github.com/kcp-dev/kcp/pull/3338)
- [github.com](https://github.com/kcp-dev/kcp/commit/614ecbf35f11db00f65391ab6fbb1547ca8b5d38)

---
Source page: https://erroneo.us/security/cve/CVE-2025-29922/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt