CVE-2026-108716
Medium
Description
mcp-remote 0.8.0 through 0.14.3 contains a cleartext transmission vulnerability in authorizeWithDeviceCode that sends client secrets and receives tokens without enforcing HTTPS endpoints. When discovered device authorization and token endpoints are non-loopback http URLs, on-path network attackers can capture the client secret plus issued access and refresh tokens.
SeverityMedium
CVSS5.3
Exploit probability—
ProductPunkpeye Mcp-remote
PublishedOct 11, 2026
First seenOct 11, 2026
Weakness typeCWE-319CWE-319
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| punkpeye mcp-remote | 0.8.0 ≤ v ≤ 0.14.3 | — |
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