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CVE-2026-31861

Cloudcli Cloud Cli code injection

8.8 HIGHPublic exploitEPSS 0.70%
  1. Published11 Mar 2026

Description

Cloud CLI (aka Claude Code UI) is a desktop and mobile UI for Claude Code, Cursor CLI, Codex, and Gemini-CLI. Prior to 1.24.0, The /api/user/git-config endpoint constructs shell commands by interpolating user-supplied gitName and gitEmail values into command strings passed to child_process.exec(). The input is placed within double quotes and only " is escaped, but backticks (`), $() command substitution, and \ sequences are all interpreted within double-quoted strings in bash. This allows authenticated attackers to execute arbitrary OS commands via the git configuration endpoint. This vulnerability is fixed in 1.24.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Cloudcli Cloud Cli< 1.24.0

Remediation

Fixed in
Cloudcli Cloud Cli≥ 1.24.0

References

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Frequently asked

Is CVE-2026-31861 being actively exploited?

CVE-2026-31861 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.70%.

How severe is CVE-2026-31861?

CVE-2026-31861 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.70% probability of exploitation.

Which products are affected by CVE-2026-31861?

Affected products include Cloudcli Cloud Cli.

How do I fix CVE-2026-31861?

Upgrade affected software to a fixed version, for example Cloudcli Cloud Cli 1.24.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-31861 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.