CVE-2026-104848
- Source
- https://cve.org/CVERecord?id=CVE-2026-104848
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104848.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-104848
- Aliases
- Downstream
ROOT (1)
- Published
- 2026-10-02T16:15:04Z
- Modified
- 2026-10-21T02:54:32Z
- Severity
-
- 9.5 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
- Summary
- Tinypool: Prototype Pollution gadget in worker options leads to Remote Code Execution
- Details
-
Tinypool is a minimal Node.js worker thread pool implementation. Prior to 2.1.1, Tinypool constructs ThreadPool.options from a normal options object and reads the execArgv and env worker options in dist/index.js, allowing values inherited from a polluted Object.prototype to be copied into own properties and passed to worker_threads.Worker. An attacker who can first pollute either property can cause each newly spawned worker to load attacker-selected JavaScript through command-line preload arguments or NODE_OPTIONS, resulting in code execution with the host process's privileges and possible access to CI secrets, signing material, or build artifacts. This issue is fixed in version 2.1.1.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-1321" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104848.json" }- References
-
- https://github.com/tinylibs/tinypool/releases/tag/v2.1.1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104848.json
- https://github.com/tinylibs/tinypool/security/advisories/GHSA-5gmw-xhrv-c9v3
- https://nvd.nist.gov/vuln/detail/CVE-2026-104848
- https://github.com/tinylibs/tinypool/commit/24df4e730e7d0857a6d226c9b58f8924227404fd
- https://github.com/tinylibs/tinypool/pull/134
Affected packages
Git / github.com/tinylibs/tinypool
Affected ranges
- Type
- GIT
- Repo
- https://github.com/tinylibs/tinypool
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "2.1.1" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "24df4e730e7d0857a6d226c9b58f8924227404fd" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v2.1.1", "range": [ { "fixed": "4b5229a1cf6512989738676a6bcb247879be3298" } ], "source": "REFERENCES_TAG" } ] }