CVE-2026-55797: Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes

Q: How do I fix CVE-2026-55797?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Q: Is CVE-2026-55797 being exploited?

CVE-2026-55797 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-55797 affect?

CVE-2026-55797 affects affected software. Severity is high (CVSS 8.8). Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 2.11.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, the Argo CD repo-server is vulnerable to command injection when it clones, tests, or fetches an SSH Git reposi

Q: How urgent is CVE-2026-55797?

Priority 56/100. High severity; On your watchlist

This month

HIGH 8.8WATCHLIST

CVE-2026-55797 is a high-severity flaw (CVSS 8.8) affecting affected software. 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. From 2.11.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, the Argo CD repo-server is vulnerable to command injection when it clones, tests, or fetches an SSH Git repository configured with a proxy URL. The proxy host and port are embedded in an SSH ProxyCommand that is executed through a shell without neutralizing shell metacharacters. A user who can create or update a reposi

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.9% (top 21%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-10-09
Last modified	2026-10-09

Publisher (CNA): GitHub, Inc.

Last updated 2026-10-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-10-09 17:16 UTCPublished CVE record published
2026-10-09 18:17 UTCUpdated Record last modified

Exact fixes by distribution

Go · github.com/argoproj/argo-cd/v2 · NO FIX YET · vulnerable: >= 2.11.0, <= 2.14.21 · source

Go · github.com/argoproj/argo-cd/v3 · FIXED · 3.3.15 · vulnerable: >= 3.0.0, < 3.3.15 · source

go get github.com/argoproj/argo-cd/v3@v3.3.15 go list -m github.com/argoproj/argo-cd/v3

Fedora ELN · edk2 · FIXED · 20260812-12.eln159 · FEDORA-2026-e316b6370a · source

sudo dnf upgrade --advisory=FEDORA-2026-e316b6370a

Fedora 46 · perl-Mojo-DOM58 · FIXED · 3.003-1.fc46 · FEDORA-2026-d5412af3de · source

sudo dnf upgrade --advisory=FEDORA-2026-d5412af3de

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-2026-55797?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-55797 being exploited?

CVE-2026-55797 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-2026-55797 affect?

CVE-2026-55797 affects affected software. Severity is high (CVSS 8.8). Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 2.11.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, the Argo CD repo-server is vulnerable to command injection when it clones, tests, or fetches an SSH Git reposi

How urgent is CVE-2026-55797?

Priority 56/100. High severity; On your watchlist

Software pages

Kubernetes vulnerabilities · Git vulnerabilities · ArgoCD vulnerabilities

References

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