CVE-2026-81834 RooCodeInc Roo-Code README File ExecaTerminalProcess code injection

Medium 5.3 Published Updated

Remote attackers can execute arbitrary code via the README file handler in the unsupported Roo-Code developer tool.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-81834?

CVE-2026-81834 is a medium-severity code injection vulnerability in RooCodeInc Roo-Code, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A weakness has been identified in RooCodeInc Roo-Code up to 3.51.1. Affected by this issue is the function ExecaTerminalProcess of the component README File Handler. Executing a manipulation can lead to code injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. Multiple isses were reported to the vendor beforehand. They explain, that "they all apply to Roo Code, a project we no longer support - the repository was archived a while ago, and we don't encourage anyone to use it." This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-94, CWE-74

Which versions are affected by CVE-2026-81834?

How do I fix CVE-2026-81834?

No fix has been published for CVE-2026-81834 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-81834 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81834 exists.

Sources

Also known as GHSA-3j8c-p2mq-9c5h.

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