CVE-2022-36049Network attack vector

Controller panic via oversized strvals arrays

Published Sep 7, 2022 · Updated Apr 23, 2025

Resource exhaustion in Flux CD Flux before 0.32.0 and helm-controller before 0.23.0 allows remote authenticated users to stop reconciliations. The Helm SDK strvals parser turns crafted string values into oversized Go array structures, consuming memory until an unrecoverable out-of-memory panic terminates the controller. A tenant able to create a HelmRelease in a shared cluster can stop the controller from reconciling every tenant's releases.

CVSS severity7.7
High
EPSS probability1.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Flux CD Flux before 0.32.0 and helm-controller before 0.23.0 allows remote authenticated users to stop reconciliations. The Helm SDK strvals parser turns crafted string values into oversized Go array structures, consuming memory until an unrecoverable out-of-memory panic terminates the controller. A tenant able to create a HelmRelease in a shared cluster can stop the controller from reconciling every tenant's releases.

The record

CVE
CVE-2022-36049
Published
Sep 7, 2022
Updated
Apr 23, 2025
Vendor
Flux CD
Product
Flux
Classifications
CWE-770, CWE-400, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 7, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=>= 0.0.17, < 0.32.0
  2. Affected versionversion=>= 0.0.4, < 0.23.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Flux CD · Fluxversion=>= 0.0.17, < 0.32.0; version=>= 0.0.4, < 0.23.0

Published CVSS scores

7.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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-770Allocation of Resources Without Limits or Throttling
CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

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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