Riskcovery

CVE-2026-81835

RooCodeInc Roo-Code MCP Integration Trust Model malicious_mcp_server.py fetch_instructions code injection

State
Published
Severity
5.1 Medium
Published
Aug 27, 2026
Updated
Aug 28, 2026
Reserved
Aug 27, 2026

Read the record on cve.org

Description

A security vulnerability has been detected in RooCodeInc Roo-Code up to 3.51.1. This affects the function fetch_instructions of the file malicious_mcp_server.py of the component MCP Integration Trust Model. The manipulation leads to code injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. 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.

Scores

CVSSScoreVectorSource
4.05.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PVulDB
3.15.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RVulDB
3.05.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RVulDB
2.06.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:URVulDB

Weaknesses

Affected Products

ProductVersions
Roo-CodeRooCodeInc
  • 3.51.0Affected
  • 3.51.1Affected

References

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