CVE-2026-45737: Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes

This month

MEDIUM 6.3WATCHLISTUPGRADE

CVE-2026-45737 is a medium-severity flaw (CVSS 6.3) affecting argo cd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 3.2.0 until 3.2.12, 3.3.10, and 3.4.2, Argo CD ServerSideDiff can expose Kubernetes Secret values embedded in the kubectl.kubernetes.io/last-applied-configuration annotation because HideSecretData(target, live, ...) does not fully sanitize ResourceDiff.TargetState and LiveState predicted live Secret objects, allowing sensitive data, stringData, and annotations to appea

Why this priority

Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 57%)
CISA exploited list	No
Weakness	CWE-200, CWE-212
Published	2026-07-15
Last modified	2026-10-24

Publisher (CNA): GitHub, Inc. · Vendor: argoproj

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-15 20:17 UTCPublished CVE record published
2026-10-24 21:10 UTCUpdated Record last modified

argoproj argo cd UPGRADE

Affected: >= 3.2.0 and < 3.2.12 · >= 3.3.9 and < 3.3.10 · >= 3.4.1 and < 3.4.2

Fixed in: 3.2.12, 3.3.10, 3.4.2

Safe to downgrade to: a release before 3.2.0

1. Check installed version

apt-cache policy argo-cd || rpm -q argo-cd || argo-cd --version

2. UPGRADE to 3.2.12 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade argo-cd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade argo-cd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 3.2.0 (Debian / Ubuntu)

apt-cache madison argo-cd sudo apt install argo-cd=<VERSION_BEFORE_3.2.0> sudo apt-mark hold argo-cd

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list argo-cd sudo dnf downgrade argo-cd-<VERSION_BEFORE_3.2.0> sudo dnf versionlock add argo-cd

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-45737?

argo cd: upgrade to 3.2.12, 3.3.10, 3.4.2. Exact commands for each OS are on this page.

Is CVE-2026-45737 being exploited?

CVE-2026-45737 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-45737 affect?

CVE-2026-45737 affects argo cd. Severity is medium (CVSS 6.3). Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 3.2.0 until 3.2.12, 3.3.10, and 3.4.2, Argo CD ServerSideDiff can expose Kubernetes Secret values embedded in the kubectl.kubernetes.io/last-applied-configuratio

How urgent is CVE-2026-45737?

Priority 43/100. Public exploit reference; On your watchlist

Software pages

Kubernetes vulnerabilities · ArgoCD vulnerabilities

Related CVEs

CVE-2026-45738 HIGH 7.3 UPGRADE Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes

References

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