Argo CdApplication · Argoproj

CVE-2024-28175

MEDIUM · 5.4 CVSS v3.1 Published 2024-03-13
Fix available
A fix is available. Upgrade to 2.8.12 / 2.9.8 or later.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Due to the improper URL protocols filtering of links specified in the `link.argocd.argoproj.io` annotations in the application summary component, an attacker can achieve cross-site scripting with elevated permissions. All unpatched versions of Argo CD starting with v1.0.0 are vulnerable to a cross-site scripting (XSS) bug allowing a malicious user to inject a javascript: link in the UI. When clicked by a victim user, the script will execute with the victim's permissions (up to and including admin). This vulnerability allows an attacker to perform arbitrary actions on behalf of the victim via the API, such as creating, modifying, and deleting Kubernetes resources. A patch for this vulnerability has been released in Argo CD versions v2.10.3 v2.9.8, and v2.8.12. There are no completely-safe workarounds besides upgrading. The safest alternative, if upgrading is not possible, would be to create a Kubernetes admission controller to reject any resources with an annotation starting with link.argocd.argoproj.io or reject the resource if the value use an improper URL protocol. This validation will need to be applied in all clusters managed by ArgoCD.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-79

Untrusted input is placed into a web page without being neutralised, so an attacker's markup or script executes in another user's browser. That can hijack sessions, capture keystrokes, or silently perform actions as the victim. Fixing it properly means context-aware output encoding everywhere data meets HTML, backed by a content-security policy as a second line of defence.

General guidance for the cross-site scripting (xss) class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Argo CdApplication
Affected:>= 1.0.0, < 2.8.12>= 2.9.0, < 2.9.8>= 2.10.0, < 2.10.3

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 2.8.12 / 2.9.8 / 2.10.3 or later
Fixed in 2.8.122.9.82.10.3
Vendor patch github.com →
Recommended fix Moderate confidence

Upgrade to v2.10.3 (or v2.9.8 or v2.8.12 depending on current version branch)

  1. 1. Identify current Argo CD version by running: kubectl get argocd -n argocd -o jsonpath='{.items[0].status.version}' or checking the Argo CD UI footer
  2. 2. Based on current version, plan upgrade to the appropriate fixed release: if on 2.8.x upgrade to v2.8.12, if on 2.9.x upgrade to v2.9.8, if on 2.10.x upgrade to v2.10.3
  3. 3. Backup Argo CD configuration: kubectl get all -n argocd -o yaml > argocd-backup.yaml and export any Application manifests
  4. 4. Upgrade Argo CD using your installation method (Helm, kubectl, or operator) to the target fixed version
  5. 5. Verify the upgrade was successful by checking Argo CD UI is accessible and no errors in pods
  6. 6. Validate the XSS fix by testing that javascript: links in link.argocd.argoproj.io annotations are now blocked

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $900. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-28175 in production — separate from our analysis above.

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What this is

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