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CVE-2026-45738

Argoproj Argo Cd cross-site scripting (XSS)

7.3 HIGHPublic exploitEPSS 0.61%
  1. Published15 Jul 2026

Description

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-privileged user's authenticated Argo CD origin session. This issue is fixed in versions 3.2.12, 3.3.10, and 3.4.2.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Affected products

Argoproj Argo Cd≥ 3.3.0 < 3.3.10 · ≥ 3.4.0 < 3.4.2 · < 3.2.12

Frequently asked

Is CVE-2026-45738 being actively exploited?

CVE-2026-45738 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.61%.

How severe is CVE-2026-45738?

CVE-2026-45738 has a CVSS 3.1 base score of 7.3, rated high. EPSS estimates a 0.61% probability of exploitation.

Which products are affected by CVE-2026-45738?

Affected products include Argoproj Argo Cd.

How do I fix CVE-2026-45738?

Upgrade affected software to a fixed version, for example Argoproj Argo Cd 3.3.10 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-45738 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.