CVE-2025-0825

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.

Score

CVSS 4.0 6.9 Medium

Status

Analyzed - 596c5446-0ce5-4ba2-aa66-48b3b757a647

Published

2025-02-04

Last modified

2025-05-23

Weaknesses

CWE-113

Affected products

• Cpp-httplib (Yhirose)

References

• https://advisory.checkmarx.net/advisory/CVE-2025-0825/
• https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289