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CVE-2026-13745

Arbitrary Code Execution in Gemini CLI via Untrusted Local .env Files Overriding GEMINI_CLI_HOME

High7.7EPSS 0.65%
Published
Updated
Reserved
Assigned by
GoogleCloud

Description

A vulnerability in the Gemini CLI prior to version 0.39.1 allows attackers to achieve arbitrary code execution by tricking a victim into starting the CLI within an untrusted directory. The vulnerability is triggered via untrusted .env files overriding GEMINI_CLI_HOME to load malicious configuration files and bypass folder trust prompts.

Scores

CVSS scores of CVE-2026-13745, by who scored it
Scored byCVSSScoreVector
GoogleCloudCNA (assigner)4.0High7.7CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/U:Amber
NVDNVD · Awaiting Analysis4.0High7.7CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber
EPSS (exploitation in 30 days)
0.65% · top 49% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.

Weakness

Affected products

What to do

Solution: * Upgrade: Ensure you are using the latest version of gemini cli and follow the best practices guide https://github.com/google-github-actions/run-gemini-cli/blob/main/docs/trust-guidance.md * Configure Trust: Determine if your CI workflow operates on trusted or untrusted data. If the data is fully trusted, set GEMINI_TRUST_WORKSPACE: 'true' in your workflow.

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .