CVE-2021-22959
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 2.9%
exploitation probability
2.9%top 14% of all CVEs
observed exploitation
nono source reports it
The parser in accepts requests with a space (SP) right after the header name before the colon. This can lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6.
Affected products
NodeJS · Node