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CVE-2026-33872— elixir-nodejs has Cross-User Data Leakage or Information Disclosure due to Worker Protocol Race Condition

Quick assessment

Affected
revelrylabs elixir-nodejs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

elixir-nodejs是Revelry开源的一个用于调用 Node.js 函数的 Elixir API。 elixir-nodejs 3.1.4之前版本存在竞争条件问题漏洞，该漏洞源于工作协议中的竞争条件导致请求响应关联缺失，可能导致跨用户数据泄露或信息泄露。

AI Predicted 7.5 Difficulty: Hard EPSS 0.45% · P38

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-33872

Vulnerability Information
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Vulnerability Title
elixir-nodejs has Cross-User Data Leakage or Information Disclosure due to Worker Protocol Race Condition
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
elixir-nodejs 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
elixir-nodejs是Revelry开源的一个用于调用 Node.js 函数的 Elixir API。 elixir-nodejs 3.1.4之前版本存在竞争条件问题漏洞，该漏洞源于工作协议中的竞争条件导致请求响应关联缺失，可能导致跨用户数据泄露或信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
revelrylabs elixir-nodejs < 3.1.4 -

II. Public POCs for CVE-2026-33872

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III. Intelligence Information for CVE-2026-33872

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Patches & Fixes for CVE-2026-33872 (2)

Vendor Advisories for CVE-2026-33872 (1)

News Coverage for CVE-2026-33872 (1)

IV. Related Vulnerabilities

Same weakness: CWE-362

V. Comments for CVE-2026-33872

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