CVE-2022-24878Network attack vector

Controller crash via recursive Kustomization references

Published May 6, 2022 · Updated Apr 23, 2025

Uncontrolled recursion in Flux 0.19.0 through 0.28.x allows remote authenticated users to crash kustomize-controller with a crafted file. A specially crafted kustomization.yaml uses path references that validation fails to block, causing the controller to enter an endless loop. Write access to a Flux source is required; in multi-tenant clusters, the crash prevents multiple tenants' Kustomizations from being applied.

CVSS severity7.7
High
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled recursion in Flux 0.19.0 through 0.28.x allows remote authenticated users to crash kustomize-controller with a crafted file. A specially crafted kustomization.yaml uses path references that validation fails to block, causing the controller to enter an endless loop. Write access to a Flux source is required; in multi-tenant clusters, the crash prevents multiple tenants' Kustomizations from being applied.

The record

CVE
CVE-2022-24878
Published
May 6, 2022
Updated
Apr 23, 2025
Vendor
Flux CD
Product
Flux
Classifications
CWE-22, CWE-674, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=flux2 < v0.28.5, >= v0.19.0
  2. Affected versionversion=kustomize < v0.29.0, >= v0.16.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Flux CD · Fluxversion=flux2 < v0.28.5, >= v0.19.0; version=kustomize < v0.29.0, >= v0.16.0

Published CVSS scores

7.7GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-674Uncontrolled Recursion
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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