Vulnerability details

CVE-2026-33872

revelrylabs elixir-nodejs

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

CVSS 4.0
7.1High

Official 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.

CVSS scores

ScoreVersionSourceVector
7.1High 4.0 CVEProject cvelistV5 (CNA) (GitHub_M) 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

Affected products

VendorProductVersionsSource
revelrylabs elixir-nodejs < 3.1.4 CVEProject cvelistV5 (CNA)

References and advisories

4
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Details

Published
2026-03-27
Last updated
2026-03-30
State
Published
Assigner (CNA)
GitHub_M

Exploit prediction (EPSS)

0.39%
Probability of exploitation in 30 days
33.9%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
None
Technical impact
Partial

Weaknesses (CWE)

  • CWE-362
    Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')