CVE-2026-81834Public exploitNetwork attack vectorHinoki check available

Code execution via crafted README processing

Published Aug 27, 2026 · Updated Aug 27, 2026

Code injection in Roo Code 3.51.0 through 3.51.1 allows remote attackers to execute code through a crafted README file. The public record names ExecaTerminalProcess in the README File Handler but does not disclose which README field reaches the execution sink or how it is parsed. Exploitation requires user interaction with attacker-controlled README content; resulting commands run in the extension's local terminal context.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Code injection in Roo Code 3.51.0 through 3.51.1 allows remote attackers to execute code through a crafted README file. The public record names ExecaTerminalProcess in the README File Handler but does not disclose which README field reaches the execution sink or how it is parsed. Exploitation requires user interaction with attacker-controlled README content; resulting commands run in the extension's local terminal context.

The record

CVE
CVE-2026-81834
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
Roo Code, Inc.
Product
Roo Code
Classifications
CWE-94, CWE-74, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.51.0
  2. Affected versionversion=3.51.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Roo Code, Inc. · Roo Codeversion=3.51.0; version=3.51.1

Published CVSS scores

5.7VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.7VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo