CVE-2020-36049

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.

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

2.67% chance of exploitation in the next 30 days, 86th percentile

Published

2021-01-07

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://blog.caller.xyz/socketio-engineio-dos/

Security advisories

• https://blog.caller.xyz/socketio-engineio-dos
• bcaller/kill-engine-io
• socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55
• advisories/GHSA-xfhh-g9f5-x4m4

References

• CVE Record
• NVD entry