153 lines
6.6 KiB
JSON
153 lines
6.6 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-52869",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-08T21:44:27.363Z",
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"datePublished": "2026-07-15T20:06:23.604Z",
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"dateUpdated": "2026-07-16T13:00:37.854Z"
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},
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"containers": {
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"cna": {
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"title": "MCP Python SDK: HTTP transports serve session requests without verifying the authenticated principal",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-639",
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"lang": "en",
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"description": "CWE-639: Authorization Bypass Through User-Controlled Key",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 7.1,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/modelcontextprotocol/python-sdk/security/advisories/GHSA-jpw9-pfvf-9f58",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/modelcontextprotocol/python-sdk/security/advisories/GHSA-jpw9-pfvf-9f58"
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},
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{
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"name": "https://github.com/modelcontextprotocol/python-sdk/pull/2690",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/modelcontextprotocol/python-sdk/pull/2690"
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},
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{
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"name": "https://github.com/modelcontextprotocol/python-sdk/pull/2719",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/modelcontextprotocol/python-sdk/pull/2719"
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},
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{
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"name": "https://github.com/modelcontextprotocol/python-sdk/commit/1abcca2408a6b50e10ec601181f63f9978705c00",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/modelcontextprotocol/python-sdk/commit/1abcca2408a6b50e10ec601181f63f9978705c00"
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},
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{
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"name": "https://github.com/modelcontextprotocol/python-sdk/commit/ce267b6fc515dc4efc1dc70b6975b16ff0feef0a",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/modelcontextprotocol/python-sdk/commit/ce267b6fc515dc4efc1dc70b6975b16ff0feef0a"
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},
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{
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"name": "https://github.com/modelcontextprotocol/python-sdk/releases/tag/v1.27.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/modelcontextprotocol/python-sdk/releases/tag/v1.27.2"
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}
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],
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"affected": [
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{
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"vendor": "modelcontextprotocol",
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"product": "python-sdk",
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"versions": [
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{
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"version": "< 1.27.2",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-07-15T20:06:23.604Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol (MCP). Prior to 1.27.2, the SSE and stateful Streamable HTTP transports mcp.server.sse.SseServerTransport and mcp.server.streamable_http_manager.StreamableHTTPSessionManager route requests to existing sessions using only the session_id query parameter or Mcp-Session-Id header without verifying the authenticated principal that created the session, allowing a different bearer-token-authenticated client with a known session ID to inject JSON-RPC messages into that session. This issue is fixed in version 1.27.2."
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}
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],
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"source": {
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"advisory": "GHSA-jpw9-pfvf-9f58",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-07-16T13:00:22.816039Z",
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"id": "CVE-2026-52869",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-07-16T13:00:37.854Z"
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}
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}
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]
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}
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} |