CVE-2025-6514: OS command injection in mcp-remote when connecting to untrusted MCP servers
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-01 19:19 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
mcp-remote is exposed to OS command injection when connecting to untrusted MCP servers due to crafted input from the authorization_endpoint response URL
Description quoted from the CVE record (assigned by JFROG, published 2025-07-09).
Weakness: CWE-78 Improper Neutralization of Special Elements used in an OS Command (‘OS Command Injection’)
How it can be exploited
Exploitable over the network with low attack complexity needing no privileges and a user must take an action. Impact: confidentiality high, integrity high, availability high. CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA assessment (SSVC): CISA has no evidence of exploitation. Automatable: no. Technical impact: total.
Public exploit evidence (Exploit Observer)
Also known as: BDU:2025-09316, CNNVD-202507-1307, EUVD-2025-20823, GHSA-6xpm-ggf7-wc3p, SNYK-JS-MCPREMOTE-10734125
VEDAS cluster: VEDAS:BLAZINGBANJO
Exploit Observer links 2 pieces of public exploit code or detection modules that name this CVE or one of its aliases.
Exploit code and modules (2)
Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.
- Code repository: https://github.com/chasehcs/cve-2025-6514
- Code repository: https://github.com/cyberency/cve-2025-6514
Research and write-ups (1)
- Research or write-up: https://amlalabs.com/blog/oauth-cve-2025-6514
Vulnerability databases and vendor advisories (6)
Catalogue entries, not exploit evidence.
- Vulnerability database or vendor advisory: https://euvd.enisa.europa.eu/enisa/EUVD-2025-20823
- Vulnerability database or vendor advisory: https://github.com/advisories/GHSA-6xpm-ggf7-wc3p
- Vulnerability database or vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-6514
- Vulnerability database or vendor advisory: https://osv.dev/vulnerability/GHSA-6xpm-ggf7-wc3p
- Vulnerability database or vendor advisory: https://security.snyk.io/vuln/SNYK-JS-MCPREMOTE-10734125
- Vulnerability database or vendor advisory: https://www.cnnvd.org.cn/home/globalSearch?keyword=CNNVD-202507-1307
70 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.
VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.
Live scores
- EPSS
- 0.770
very likely to be attacked soon - VEDAS
- 0.982
strong exploit evidence - On CISA KEV
- Not listed
- Detection rule
- None yet
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| (mcp-remote) | from 0.0.5 up to and including 0.1.15 | Not stated |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
Exploit Observer also maps it to: сообщество_свободного_программного_обеспечения mcp-remote.
How to fix it
Vendor guidance:
How to detect it
There is no open VEDAS detection rule for this bug yet. It is listed on the detection gaps page if CISA has confirmed attacks.
Advisories on this CVE
- mcp-remote OS command injection (CVE-2025-6514) (July 2025)
References
Vendor advisories and patches
Exploits and technical analysis
- https://research.jfrog.com/vulnerabilities/mcp-remote-command-injection-rce-jfsa-2025-001290844/ (third-party-advisory)
- https://jfrog.com/blog/2025-6514-critical-mcp-remote-rce-vulnerability (technical-description)
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, cve-scores (EPSS and VEDAS), Exploit Observer. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.