GHSA-f4p5-x4vc-mh4v: github.com/fluxcd/flux2 (CVE-2022-39272)

Improper use of metav1.Duration allows for Denial of Service

CVSS 5.0 MediumEPSS 0.0079 · 56th percentile

Published by the GitHub Advisory Database at 19 Oct 2022, 18:40 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
github.com/fluxcd/flux2	Go	>=0.1.0, <0.35.0	0.35.0
github.com/fluxcd/source-controller	Go	>=0.0.1-alpha-1, <0.30.0	0.30.0
github.com/fluxcd/kustomize-controller	Go	>=0.0.1-alpha-1, <0.29.0	0.29.0
github.com/fluxcd/helm-controller	Go	>=0.0.1-alpha-1, <0.24.0	0.24.0
github.com/fluxcd/notification-controller	Go	>=0.0.1-alpha-1, <0.27.0	0.27.0
github.com/fluxcd/image-automation-controller	Go	>=0.1.0, <0.26.0	0.26.0
github.com/fluxcd/image-reflector-controller	Go	>=0.1.0, <0.22.0	0.22.0
github.com/fluxcd/helm-controller/api	Go	<0.26.0	0.26.0
github.com/fluxcd/image-automation-controller/api	Go	<0.26.1	0.26.1
github.com/fluxcd/image-reflector-controller/api	Go	<0.22.1	0.22.1
github.com/fluxcd/kustomize-controller/api	Go	<0.30.0	0.30.0
github.com/fluxcd/notification-controller/api	Go	<0.28.0	0.28.0
github.com/fluxcd/source-controller/api	Go	<0.30.0	0.30.0

Identifiers

GHSA-f4p5-x4vc-mh4v · BIT-flux-2022-39272 · BIT-kustomize-2022-39272 · CVE-2022-39272 · GO-2022-1071

Weakness (CWE)

CWE-20 · CWE-1284

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Flux controllers (flux2 and several Flux controllers and API modules, with affected versions listed per package) are vulnerable to denial of service. A user with permission to change Flux objects, directly or through a Flux source, can supply invalid values in the interval or timeout fields, which stops that object type from being processed. Upgrade to flux2 0.35.0 or later, and to the fixed version listed for each affected controller and API module. Admission controllers can restrict values for these fields as an alternative.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.0	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0079, the 56th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:43 UTC First seen by agentprime
31 Oct 2026, 14:43 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.