{"cve":"CVE-2026-81835","nvd":{"published":"2026-08-28T00:18:21.593","modified":"2026-08-28T20:20:13.370","status":"Deferred","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.","cvss_v4":{"vector":"CVSS: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:P","score":2.0},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L","score":5.5},"cwes":["CWE-74","CWE-94"],"references":["https://gist.github.com/tchen200311/05b5960272c290b7843d6bbdbfe9f7c1","https://vuldb.com/cve/CVE-2026-81835","https://vuldb.com/submit/864286","https://vuldb.com/vuln/396168","https://vuldb.com/vuln/396168/cti"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-81835","score":0.003,"percentile":0.22719,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}