CVE-2026-42559
5 advisories.
crates.io/rmcp CVE-2026-42559: high 8.8
rmcp Streamable HTTP server transport has a DNS rebinding vulnerability
Action: Upgrade rmcp to 1.4.0 or later.
cargo update -p rmcp --precise 1.4.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.4.0 | - |
Fixed versions
| 1.4.0 |
Sources
- osv: GHSA-89vp-x53w-74fx
- https://github.com/modelcontextprotocol/rust-sdk/security/advisories/GHSA-89vp-x53w-74fx
- https://github.com/nubo-db/dynoxide/security/advisories/GHSA-fvh2-gm75-j4j7
- https://nvd.nist.gov/vuln/detail/CVE-2026-42559
- https://github.com/modelcontextprotocol/rust-sdk/issues/815
- https://github.com/modelcontextprotocol/rust-sdk/issues/822
- https://github.com/modelcontextprotocol/rust-sdk/pull/764
- https://github.com/modelcontextprotocol/rust-sdk/commit/8e22aa2de28df5a285eed87c11cd89bf15fa90d3
- https://github.com/modelcontextprotocol/rust-sdk
- https://modelcontextprotocol.io/specification/2025-06-18/basic/transports#security-warning
- https://rustsec.org/advisories/RUSTSEC-2026-0140.html
CVE-2026-42559 · published · modified · JSON
crates.io/dynoxide-rs CVE-2026-42559: high 7.5
dynoxide: DNS rebinding and cross-origin CSRF via MCP HTTP transport
Action: Upgrade dynoxide-rs to 0.9.13 or later.
cargo update -p dynoxide-rs --precise 0.9.13Affected
| introduced | fixed | last affected |
|---|---|---|
| 0.9.3 | 0.9.13 | - |
Fixed versions
| 0.9.13 |
Sources
- osv: GHSA-fvh2-gm75-j4j7
- https://github.com/nubo-db/dynoxide/security/advisories/GHSA-fvh2-gm75-j4j7
- https://github.com/nubo-db/dynoxide
- https://github.com/nubo-db/dynoxide/releases/tag/v0.9.13
- https://rustsec.org/advisories/RUSTSEC-2026-0140.html
CVE-2026-42559 · published · modified · JSON
npm/dynoxide CVE-2026-42559: high 7.5
dynoxide: DNS rebinding and cross-origin CSRF via MCP HTTP transport
Action: Upgrade dynoxide to 0.9.13 or later.
npm i dynoxide@0.9.13Affected
| introduced | fixed | last affected |
|---|---|---|
| 0.9.3 | 0.9.13 | - |
Fixed versions
| 0.9.13 |
Sources
- osv: GHSA-fvh2-gm75-j4j7#npm/dynoxide
- https://github.com/nubo-db/dynoxide/security/advisories/GHSA-fvh2-gm75-j4j7
- https://github.com/nubo-db/dynoxide
- https://github.com/nubo-db/dynoxide/releases/tag/v0.9.13
- https://rustsec.org/advisories/RUSTSEC-2026-0140.html
CVE-2026-42559 · published · modified · JSON
crates.io/dynoxide-rs CVE-2026-42559: high 8.8
DNS rebinding and cross-origin CSRF in dynoxide's MCP HTTP transport
Action: Upgrade dynoxide-rs to 0.9.13 or later.
cargo update -p dynoxide-rs --precise 0.9.13Affected
| introduced | fixed | last affected |
|---|---|---|
| 0.9.3 | 0.9.13 | - |
Fixed versions
| 0.9.13 |
Sources
- osv: RUSTSEC-2026-0140
- https://crates.io/crates/dynoxide-rs
- https://rustsec.org/advisories/RUSTSEC-2026-0140.html
- https://github.com/nubo-db/dynoxide/commit/10292083fd16fe7116e9089ffa189f4f4f071e0f
- https://github.com/nubo-db/dynoxide/releases/tag/v0.9.13
CVE-2026-42559 · published · modified · JSON
crates.io/rmcp CVE-2026-42559: high 8.8
DNS rebinding vulnerability in rmcp Streamable HTTP server transport
Action: Upgrade rmcp to 1.4.0 or later.
cargo update -p rmcp --precise 1.4.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0.0.0-0 | 1.4.0 | - |
Fixed versions
| 1.4.0 |
Sources
- osv: RUSTSEC-2026-0189
- https://crates.io/crates/rmcp
- https://rustsec.org/advisories/RUSTSEC-2026-0189.html
- https://github.com/modelcontextprotocol/rust-sdk/issues/815
- https://github.com/modelcontextprotocol/rust-sdk/pull/764
- https://github.com/modelcontextprotocol/rust-sdk/issues/822
- https://modelcontextprotocol.io/specification/2025-06-18/basic/transports#security-warning
CVE-2026-42559 · published · modified · JSON