CVE-2026-55797 Argo CD - Command Injection

Argo CD 2.11.0 to 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2 contains a command injection caused by unneutralized shell metacharacters in SSH ProxyCommand during Git repository operations, letting users with repository creation/update privileges execute commands on repo-server.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
1.55% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
9 October 2026
Updated
15 October 2026
Weakness
CWE-78

Vendor fix

Update to versions 3.3.15, 3.4.10, 3.5.4, 3.6.0-rc2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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