CVE-2026-81837Public exploitNetwork attack vectorHinoki check available

Out-of-workspace file write via crafted patch paths

Published Aug 27, 2026 · Updated Aug 27, 2026

Path traversal in Roo Code 3.51.0 and 3.51.1 allows remote attackers to write files outside the workspace through crafted patch paths. ApplyPatchTool passes attacker-controlled file paths to path.resolve without enforcing that the resolved result remains beneath the workspace root. Exploitation requires user interaction with attacker-supplied patch content and can modify files reachable with the editor process's permissions.

CVSS severity6.3
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in Roo Code 3.51.0 and 3.51.1 allows remote attackers to write files outside the workspace through crafted patch paths. ApplyPatchTool passes attacker-controlled file paths to path.resolve without enforcing that the resolved result remains beneath the workspace root. Exploitation requires user interaction with attacker-supplied patch content and can modify files reachable with the editor process's permissions.

The record

CVE
CVE-2026-81837
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
Roo Code, Inc.
Product
Roo Code
Classifications
CWE-22, T1204
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

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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

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204User Execution

Public exploit references

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Technologies

Your stack

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Your stack

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