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CVE-2025-6514OS command injection in mcp-remote when connecting to untrusted MCP servers
- 9.6CriticalCVSS base score
- 77.0%Exploitation in 30 daysEPSS · top 0.4% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
mcp-remote is exposed to OS command injection when connecting to untrusted MCP servers due to crafted input from the authorization_endpoint response URL
Timeline
ID reserved
By JFROG
- 16 days later
· 16 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| JFROGCNA (assigner) | 3.1 | Critical9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | Critical9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 77.0% · top 0.4% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.6.
Affected products
mcp-remote
- affected 0.0.5 – ≤ 0.1.15
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmmcp-remoteGHSA-6xpm-ggf7-wc3p (opens in a new tab)
References
References3
- https://research.jfrog.com/vulnerabilities/mcp-remote-command-injection-rce-jfsa-2025-001290844/ (opens in a new tab)third-party-advisory
- https://github.com/geelen/mcp-remote/commit/607b226a356cb61a239ffaba2fb3db1c9dea4bac (opens in a new tab)patch
- https://jfrog.com/blog/2025-6514-critical-mcp-remote-rce-vulnerability (opens in a new tab)technical-description
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-20823 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-6xpm-ggf7-wc3p (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2025-6514)Record last updated .