Description
cpp-httplib version v0.17.3 through v0.18.3 fails to filter CRLF characters ("\r\n") when those are prefixed with a null byte. This enables attackers to exploit CRLF injection that could further lead to HTTP Response Splitting, XSS, and more.
Scores
CVSS v3
5.3
EPSS
0.0011
EPSS Percentile
28.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-113
Status
published
Products (1)
yhirose/cpp-httplib
0.17.3 - 0.18.4
Published
Feb 04, 2025
Tracked Since
Feb 18, 2026