Vulnerability · Published Jan 7, 2021 · Assigned by mitre
CVE-2020-36049
High 7.5
In plain English
A high-severity security flaw in the node-socket.io-parser package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.7% (higher than 86% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.7%top 14.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
socket.io-parser before 3.4.1 allows attackers to cause a denial of service (memory consumption) via a large packet because a concatenation approach is used.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | node-socket.io-parser | 3.4.1-1 | DEBIAN-CVE-2020-36049 |
| Debian:13 | node-socket.io-parser | 3.4.1-1 | DEBIAN-CVE-2020-36049 |
| Debian:14 | node-socket.io-parser | 3.4.1-1 | DEBIAN-CVE-2020-36049 |
| Ubuntu:22.04:LTS | node-socket.io-parser | no fix listed | UBUNTU-CVE-2020-36049 |
| Ubuntu:24.04:LTS | node-socket.io-parser | no fix listed | UBUNTU-CVE-2020-36049 |
| Ubuntu:25.10 | node-socket.io-parser | no fix listed | UBUNTU-CVE-2020-36049 |
| Ubuntu:26.04:LTS | node-socket.io-parser | no fix listed | UBUNTU-CVE-2020-36049 |
| Ubuntu:26.10 | node-socket.io-parser | no fix listed | UBUNTU-CVE-2020-36049 |
| npm | socket.io-parser | 3.4.1 | GHSA-xfhh-g9f5-x4m4 |
| npm | socket.io-parser | 3.3.2 | GHSA-xfhh-g9f5-x4m4 |
Affected products (as reported)
References
- https://blog.caller.xyz/socketio-engineio-dos/ x_refsource_MISC
- https://github.com/bcaller/kill-engine-io x_refsource_MISC
- https://github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55 x_refsource_MISC