CVE-2026-111767

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-111767
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111767.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-111767
Aliases
Downstream
CGA (14)
CLSA (1)
Published
2026-10-20T18:28:45Z
Modified
2026-10-21T10:45:49Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L CVSS Calculator
Summary
MCP TypeScript SDK: Experimental tasks were not tied to the session that created them
Details

MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. From version 1.24.0 to before version 1.32.0, the experimental tasks feature (taskStore) did not check which session created a task. Clients sharing one InMemoryTaskStore could list, read and cancel each other's tasks. This issue has been patched in version 1.32.0.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-639",
        "CWE-862"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111767.json"
}
References

Affected packages

Git / github.com/modelcontextprotocol/typescript-sdk

Affected ranges

Type
GIT
Repo
https://github.com/modelcontextprotocol/typescript-sdk
Events
Introduced
356b7e61c83af723a0b7ad67d8193de70a5f03ca
Fixed
32549b00a9a808265f35a29f92fdf27fa4aac2ef
Fixed
727075b5bbeb77fbea22041b36b72a73042160fa
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "1.24.0"
                },
                {
                    "fixed":  "1.32.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "727075b5bbeb77fbea22041b36b72a73042160fa"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

1.*
1.24.0
1.24.1
1.24.2
1.24.3
1.25.0
1.25.1
1.30.0
1.30.1
1.31.0
v1.*
v1.25.2
v1.26.0
v1.27.0
v1.27.1
v1.28.0
v1.29.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111767.json"