CVE-2026-110204: roo code — Exploit

Description

Roo Code through 3.54.0 contains a command approval bypass vulnerability that allows attackers to run denied shell commands because parseCommandLine() treats ${ command; } substitutions as parameter expansions. Attackers using indirect prompt injection can embed denied commands inside an allowlisted command like echo to execute them without user approval on bash 5.3+ or ksh93.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0051

Probability of exploitation

0.44%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-436 CWE-436

Affected Products

Vendor	Product	Versions
roocode	roo_code	< 3.54.0

References

Exploits

https://github.com/7rah/oss-cve/blob/6adb836d24ca446fd168c3acdc4c170beb77fe0f/roocode-group03-funsub.md https://github.com/7rah/oss-cve/blob/6adb836d24ca446fd168c3acdc4c170beb77fe0f/roocode-group03-funsub.md

Other References

https://github.com/RooCodeInc/Roo-Code/blob/v3.54.0/src/shared/parse-command.ts#L74-L79 https://www.vulncheck.com/advisories/roo-code-through-3.54.0-auto-approve-bypass-via-funsub-command-substitution

Frequently Asked Questions

What is CVE-2026-110204? +

Roo Code through 3.54.0 contains a command approval bypass vulnerability that allows attackers to run denied shell commands because parseCommandLine() treats ${ command; } substitutions as parameter expansions. Attackers using indirect prompt injection can embed denied commands inside an allowlisted command like echo to execute them without user approval on bash 5.3+ or ksh93. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-110204? +

CVE-2026-110204 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0051, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-110204? +

CVE-2026-110204 affects products from roocode, specifically: roo_code. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-110204? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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