TI-2023-21382 Aliases CVE-2023-40584 GHSA-g687-f2gx-6wm8

Denial of Service to Argo CD repo-server

LOW 32CWE-400Published 2023-09-07 · Updated 2024-09-26

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.

Summary

Argo CD is a declarative continuous deployment for Kubernetes. All versions of ArgoCD starting from v2.4 have a bug where the ArgoCD repo-server component is vulnerable to a Denial-of-Service attack vector. Specifically, the said component extracts a user-controlled tar.gz file without validating the size of its inner files. As a result, a malicious, low-privileged user can send a malicious tar.gz file that exploits this vulnerability to the repo-server, thereby harming the system's functionality and availability. Additionally, the repo-server is susceptible to another vulnerability due to the fact that it does not check the extracted file permissions before attempting to delete them. Consequently, an attacker can craft a malicious tar.gz archive in a way that prevents the deletion of its inner files when the manifest generation process is completed. A patch for this vulnerability has been released in versions 2.6.15, 2.7.14, and 2.8.3. Users are advised to upgrade. The only way to completely resolve the issue is to upgrade, however users unable to upgrade should configure RBAC (Role-Based Access Control) and provide access for configuring applications only to a limited number of administrators. These administrators should utilize trusted and verified Helm charts.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01419 72nd percentileScored 2026-11-07

Fix Fixed argo-cd (argoproj): 2.6.15, 2.7.14, 2.8.3github.com/argoproj/argo-cd/v2 (Go): 2.6.15, 2.7.14, 2.8.3Red Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
argoproj	argo-cd	2.4.0 to before 2.6.15; 2.7.0 to before 2.7.14; 2.8.0 to before 2.8.3	2.6.15, 2.7.14, 2.8.3	Patch available	CNA
—	github.com/argoproj/argo-cd/v2 (Go)	2.4.0 to before 2.6.15	2.6.15	Patch available	GHSA-g687-f2gx-6wm8
—	github.com/argoproj/argo-cd/v2 (Go)	2.7.0 to before 2.7.14	2.7.14	Patch available	GHSA-g687-f2gx-6wm8
—	github.com/argoproj/argo-cd/v2 (Go)	2.8.0 to before 2.8.3	2.8.3	Patch available	GHSA-g687-f2gx-6wm8

argo-cd Vendorargoproj Affected 2.4.0 to before 2.6.15; 2.7.0 to before 2.7.14; 2.8.0 to before 2.8.3 Fixed in 2.6.15, 2.7.14, 2.8.3 Patch available CNA
github.com/argoproj/argo-cd/v2 (Go) Vendor— Affected 2.4.0 to before 2.6.15 Fixed in 2.6.15 Patch available GHSA-g687-f2gx-6wm8
github.com/argoproj/argo-cd/v2 (Go) Vendor— Affected 2.7.0 to before 2.7.14 Fixed in 2.7.14 Patch available GHSA-g687-f2gx-6wm8
github.com/argoproj/argo-cd/v2 (Go) Vendor— Affected 2.8.0 to before 2.8.3 Fixed in 2.8.3 Patch available GHSA-g687-f2gx-6wm8

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:argoproj:argo_cd::::::::	2.4.0 to before 2.6.15; 2.7.0 to before 2.7.14; 2.8.0 to before 2.8.3	Vulnerable	argoproj

cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* Versions 2.4.0 to before 2.6.15; 2.7.0 to before 2.7.14; 2.8.0 to before 2.8.3 Vulnerable ·argoproj

Remediation

Fix · CNA argo-cd (argoproj) Fixed in 2.6.15, 2.7.14, 2.8.3
Fix · GHSA-g687-f2gx-6wm8 github.com/argoproj/argo-cd/v2 (Go) Fixed in 2.6.15 Advisory →
Fix · GHSA-g687-f2gx-6wm8 github.com/argoproj/argo-cd/v2 (Go) Fixed in 2.7.14 Advisory →
Fix · GHSA-g687-f2gx-6wm8 github.com/argoproj/argo-cd/v2 (Go) Fixed in 2.8.3 Advisory →

Red Hat 2 advisories

RHSA-2023:5030 Released 2023-09-08 · Red Hat rating Critical
Red Hat OpenShift GitOps security update
- Red Hat OpenShift GitOps 1.8 openshift-gitops-1/argocd-rhel8
RHSA-2023:5029 Released 2023-09-08 · Red Hat rating Critical
Red Hat OpenShift GitOps security update
- Red Hat OpenShift GitOps 1.9 openshift-gitops-1/argocd-rhel8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat OpenShift GitOps 1.8	Fixed	RHSA-2023:5030
Red Hat OpenShift GitOps 1.9	Fixed	RHSA-2023:5029

Not affected: 2 products

Red Hat OpenShift GitOps 1.8
Red Hat OpenShift GitOps 1.9

Timeline

2026-10-02 Threatist record created from CVE-2023-40584
2026-10-03 Alias added: GHSA-g687-f2gx-6wm8

References

Patch 1

https://github.com/argoproj/argo-cd/commit/b8f92c4ff226346624f43de3f25d81dac6386674

Advisory 2

Other 5

TI-2024-14377 Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss CVSS 3.1CRITICAL 9.8
TI-2024-14383 Argo CD vulnerable to Bypassing of Rate Limit and Brute Force Protection Using Cache Overflow CVSS 3.1CRITICAL 9.1
TI-2026-31086 ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction CVSS 3.1CRITICAL 9.6
TI-2023-20919 Cluster secret might leak in cluster details page in Argo CD CVSS 3.1CRITICAL 9.9
TI-2024-21088 ArgoCD Vulnerable to Use of Risky or Missing Cryptographic Algorithms in Redis Cache CVSS 3.1CRITICAL 9.1
TI-2026-33475 Argo CD: Stored XSS in application link annotations enables developer-to-admin privilege escalation CVSS 3.1HIGH 8.7

See all 56 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences