elixir-nodejs provides an Elixir API for calling Node.js functions. A vulnerability in versions prior to 3.1.4 results in Cross-User Data Leakage or Information Disclosure due to a race condition in the worker protocol. The lack of request-response correlation creates a "stale response" vulnerability. Because the worker does not verify which request a response belongs to, it may return the next available data in the buffer to an unrelated caller. In high-throughput environments where the library processes sensitive user data (e.g., PII, authentication tokens, or private records), a timeout or high concurrent load can cause Data A (belonging to User A) to be returned to User B. This may lead to unauthorized information disclosure that is difficult to trace, as the application may not throw an error but instead provide "valid-looking" yet entirely incorrect and private data to the wrong session. The issue is fixed in v3.1.4.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-rwcr-rpcc-3g9m elixir-nodejs has Cross-User Data Leakage or Information Disclosure due to Worker Protocol Race Condition
Fixes

Solution

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Workaround

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History

Fri, 27 Mar 2026 20:15:00 +0000

Type Values Removed Values Added
Description elixir-nodejs provides an Elixir API for calling Node.js functions. A vulnerability in versions prior to 3.1.4 results in Cross-User Data Leakage or Information Disclosure due to a race condition in the worker protocol. The lack of request-response correlation creates a "stale response" vulnerability. Because the worker does not verify which request a response belongs to, it may return the next available data in the buffer to an unrelated caller. In high-throughput environments where the library processes sensitive user data (e.g., PII, authentication tokens, or private records), a timeout or high concurrent load can cause Data A (belonging to User A) to be returned to User B. This may lead to unauthorized information disclosure that is difficult to trace, as the application may not throw an error but instead provide "valid-looking" yet entirely incorrect and private data to the wrong session. The issue is fixed in v3.1.4.
Title elixir-nodejs has Cross-User Data Leakage or Information Disclosure due to Worker Protocol Race Condition
Weaknesses CWE-362
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-27T20:01:27.136Z

Reserved: 2026-03-24T15:10:05.679Z

Link: CVE-2026-33872

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-27T20:16:34.990

Modified: 2026-03-27T20:16:34.990

Link: CVE-2026-33872

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses