CVE-2023-39333: nodejs node Code Injection
Vulnerability summary
CVE-2023-39333 is a medium (CVSS 5.3) Code Injection vulnerability in nodejs node. EPSS estimates a 1.11% chance of exploitation in the next 30 days, higher than 65.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 12 · Related 8Timeline
- 07-09-2024PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
Maliciously crafted export names in an imported WebAssembly module can inject JavaScript code. The injected code may be able to access data and functions that the WebAssembly module itself does not have access to, similar to as if the WebAssembly module was a JavaScript module. This vulnerability affects users of any active release line of Node.js. The vulnerable feature is only available if Node.js is started with the `--experimental-wasm-modules` command line option.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · AlpineEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS trend
Probability
1.11%
Chance of exploitation in the next 30 days
Percentile
65%
Versus all other CVEs
30-day change
+0.17 pp
From 0.94% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- nodejs< 18.18.2-r0
Chainguard1 product
- nodejs-16All versions (No fix recorded)
Debian1 product
- nodejs< 18.19.0+dfsg-6~deb12u1 | < 18.13.0+dfsg1-1.1
Nodejs1 product
- node≥ 4.0, < 4.* | ≥ 5.0, < 5.* | ≥ 6.0, < 6.* | ≥ 7.0, < 7.* | ≥ 8.0, < 8.* | ≥ 9.0, < 9.* | ≥ 10.0, < 10.* | ≥ 11.0, < 11.* | ≥ 12.0, < 12.* | ≥ 13.0, < 13.* | ≥ 14.0, < 14.* | ≥ 15.0, < 15.* | ≥ 16.0, < 16.* | ≥ 17.0, < 17.* | ≥ 18.0, < 18.18.2 | ≥ 19.0, < 19.* | ≥ 20.0, < 20.8.1
Ubuntu1 product
- nodejsAll versions (No fix recorded)
Wolfi1 product
- nodejs-16All versions (No fix recorded)
6 vendors · 6 products