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

This month

HIGH 7.3WATCHLISTUPGRADE

CVE-2026-45738 is a high-severity flaw (CVSS 7.3) 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. Prior to 3.2.12, 3.3.10, and 3.4.2, Argo CD users with application write access can set link.argocd.argoproj.io/* annotations whose pipe-separated values are rendered by ui/src/app/applications/components/application-summary/application-summary.tsx in the Summary tab URLs section as anchor href values without URL validation, allowing javascript: execution in a higher-privil

Why this priority

High severity
Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-79
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: < 3.2.12 · >= 3.3.0 and < 3.3.10 · >= 3.4.0 and < 3.4.2

Fixed in: 3.2.12, 3.3.10, 3.4.2

Safe to downgrade to: a release before 3.3.0

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 3.3.0 (Debian / Ubuntu)

apt-cache madison argo-cd sudo apt install argo-cd=<VERSION_BEFORE_3.3.0> 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_3.3.0> 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-2026-45738?

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

Is CVE-2026-45738 being exploited?

CVE-2026-45738 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-2026-45738 affect?

CVE-2026-45738 affects argo cd. Severity is high (CVSS 7.3). Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Prior to 3.2.12, 3.3.10, and 3.4.2, Argo CD users with application write access can set link.argocd.argoproj.io/* annotations whose pipe-separated values are rendered

How urgent is CVE-2026-45738?

Priority 48/100. High severity; Public exploit reference; On your watchlist

Software pages

Kubernetes vulnerabilities · ArgoCD vulnerabilities

Related CVEs

CVE-2026-45737 MEDIUM 6.3 UPGRADE Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes

References

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