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CVEs-PoC/2021/CVE-2021-22959.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
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CVE-2021-22959

Description

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.

POC

Reference

Github

No PoCs found on GitHub currently.

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