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Fencer Vulns
critical 9.8

CVE-2024-21652 json

Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss

published 2024-03-18 2 y ago modified 2026-09-08 2 mo ago also BIT-argo-cd-2024-21652 , BIT-argo-cd-2024-21662 , CVE-2024-21662 , EUVD-2024-1033 , GHSA-2vgg-9h6w-m454 , GHSA-x32m-mvfj-52xv , GO-2024-2652

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Prior to versions 2.8.13, 2.9.9, and 2.10.4, an attacker can exploit a chain of vulnerabilities, including a Denial of Service (DoS) flaw and in-memory data storage weakness, to effectively bypass the application's brute force login protection. This is a critical security vulnerability that allows attackers to bypass the brute force login protection mechanism. Not only can they crash the service affecting all users, but they can also make unlimited login attempts, increasing the risk of account compromise. Versions 2.8.13, 2.9.9, and 2.10.4 contain a patch for this issue.

Patch / fix

  • go github.com/argoproj/argo-cd/v2 2.8.13, 2.9.9, 2.10.4
  • bitnami argo-cd 2.10.4
  • argoproj argo-cd 2.8.13, 2.9.9, 2.10.4
  • microshift-gitops openshift gitops 1.12 1.12.1-4.el9
  • openshift-gitops-argocd-cli openshift gitops 1.12 1.12.1-5.el8
  • openshift-gitops-argocd-cli openshift gitops 1.12 1.12.1-4.el9
  • microshift-gitops-release-info openshift gitops 1.12 1.12.1-4.el9
  • openshift-gitops-argocd-cli-redistributable openshift gitops 1.12 1.12.1-5.el8
  • openshift-gitops-argocd-cli-redistributable openshift gitops 1.12 1.12.1-4.el9

red hat advisories RHSA-2024:1752

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-21652 updated cvss 5.4

argo-cd: Bypassing Brute Force Protection via Application Crash and In-Memory Data Loss

  • Red Hat Openshift Data Foundation 4 odf4/odr-rhel8-operator
    affected: workaround, no fix available
  • Red Hat OpenShift GitOps 1.10 openshift-gitops-1/dex-rhel8 v1.10.4-1, openshift-gitops-1/argocd-rhel8 v1.10.4-1, openshift-gitops-1/gitops-rhel8 v1.10.4-1, openshift-gitops-1/must-gather-rhel8 v1.10.4-1, openshift-gitops-1/kam-delivery-rhel8 v1.10.4-1, openshift-gitops-1/argo-rollouts-rhel8 v1.10.4-1, +3 more
    fixed: vendor fix RHSA-2024:1700
  • Red Hat OpenShift GitOps 1.11 openshift-gitops-1/dex-rhel8 v1.11.3-2, openshift-gitops-1/argocd-rhel8 v1.11.3-2, openshift-gitops-1/gitops-rhel8 v1.11.3-2, openshift-gitops-1/must-gather-rhel8 v1.11.3-2, openshift-gitops-1/kam-delivery-rhel8 v1.11.3-2, openshift-gitops-1/argo-rollouts-rhel8 v1.11.3-2, +3 more
    fixed: vendor fix RHSA-2024:1697
  • Red Hat OpenShift GitOps 1.12 microshift-gitops 1.12.1-4.el9, openshift-gitops-1/dex-rhel8 v1.12.1-1, openshift-gitops-argocd-cli 1.12.1-4.el9, openshift-gitops-argocd-cli 1.12.1-5.el8, openshift-gitops-1/argocd-rhel8 v1.12.1-1, openshift-gitops-1/argocd-rhel9 v1.12.1-2, +10 more
    fixed: vendor fix RHSA-2024:1753

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/argoproj/argo-cd/v2
<2.8.13
>=2.9.0, <2.9.9
>=2.10.0, <2.10.4
2.8.13
2.9.9
2.10.4
bitnami argo-cd
<2.10.4
2.10.4

Affected products

  • argoproj argo-cd

Classification

Weakness
  • CWE-307 Improper Restriction of Excessive Authentication Attempts

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.