Flux is an open and extensible continuous delivery solution for Kubernetes. Versions prior to 0.35.0 are subject to a Denial of Service. Users that have permissions to change Flux’s objects, either through a Flux source or directly within a cluster, can provide invalid data to fields .spec.interval or .spec.timeout (and structured variations of these fields), causing the entire object type to stop being processed. This issue is patched in version 0.35.0. As a workaround, Admission controllers can be employed to restrict the values that can be used for fields .spec.interval and .spec.timeout, however upgrading to the latest versions is still the recommended mitigation.
CVE-2022-39272
This medium-severity CVE scores 5.0 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 44% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.0
- EG Score
- 5.0(medium)
- EPSS
- 44.8%
- KEV
- Not listed
Published
October 22, 2022
Last Modified
November 21, 2024
References (4)
- security-advisories@githubhttps://github.com/fluxcd/flux2/security/advisories/GHSA-f4p5-x4vc-mh4v
- security-advisories@githubhttps://github.com/kubernetes/apimachinery/issues/131
- af854a3a-2127-422b-91ae-364da2661108https://github.com/fluxcd/flux2/security/advisories/GHSA-f4p5-x4vc-mh4v
- af854a3a-2127-422b-91ae-364da2661108https://github.com/kubernetes/apimachinery/issues/131
Affected Packages
(13 across 1 ecosystem)
Go(13)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/fluxcd/flux2 | — | 0.35.0 | — |
| github.com/fluxcd/helm-controller | — | 0.24.0 | — |
| github.com/fluxcd/helm-controller/api | — | 0.26.0 | — |
| github.com/fluxcd/image-automation-controller | — | 0.26.0 | — |
| github.com/fluxcd/image-automation-controller/api | — | 0.26.1 | — |
| github.com/fluxcd/image-reflector-controller | — | 0.22.0 | — |
| github.com/fluxcd/image-reflector-controller/api | — | 0.22.1 | — |
| github.com/fluxcd/kustomize-controller | — | 0.29.0 | — |
| github.com/fluxcd/kustomize-controller/api | — | 0.30.0 | — |
| github.com/fluxcd/notification-controller | — | 0.27.0 | — |
| github.com/fluxcd/notification-controller/api | — | 0.28.0 | — |
| github.com/fluxcd/source-controller | — | 0.30.0 | — |
| github.com/fluxcd/source-controller/api | — | 0.30.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 45× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:25 UTCEPSS rescore
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- 2026-06-23 21:31 UTCEPSS rescore
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- 2026-06-11 04:39 UTCOSV refresh
- 2026-06-10 22:17 UTCEPSS rescore
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- 2026-05-29 13:43 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-25 13:17 UTCEG score recompute
- 2026-05-24 16:51 UTCEPSS rescore
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Same CWE
10 shownCWE-1284
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- CVE-2022-37134EG 9.8EPSS 97%CRITICAL
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Frequently asked(5)
What is CVE-2022-39272?
When was CVE-2022-39272 disclosed?
Is CVE-2022-39272 actively exploited?
What is the CVSS score of CVE-2022-39272?
How do I remediate CVE-2022-39272?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-39272
Is Your Infrastructure Affected by CVE-2022-39272?
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