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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://advisory.checkmarx.net/advisory/CVE-2025-0825/	Exploit Third Party Advisory
https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289	Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:yhirose:cpp-httplib:*:*:*:*:*:*:*:*

History

04 Aug 2025, 15:06

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
First Time		Yhirose Yhirose cpp-httplib
CPE		cpe:2.3:a:yhirose:cpp-httplib::::::::
References	~~() https://advisory.checkmarx.net/advisory/CVE-2025-0825/ -~~	() https://advisory.checkmarx.net/advisory/CVE-2025-0825/ - Exploit, Third Party Advisory
References	~~() https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289 -~~	() https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289 - Patch

23 May 2025, 13:15

Type	Values Removed	Values Added
References		() https://advisory.checkmarx.net/advisory/CVE-2025-0825/ -
Summary		(es) La versión v0.17.3 a v0.18.3 de cpp-httplib no filtra los caracteres CRLF ("\r\n") cuando tienen como prefijo un byte nulo. Esto permite a los atacantes aprovechar la inyección CRLF que podría conducir a la división de la respuesta HTTP, XSS y más.

04 Feb 2025, 15:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-02-04 15:15

Updated : 2025-08-04 15:06

NVD link : CVE-2025-0825

Mitre link : CVE-2025-0825

CVE.ORG link : CVE-2025-0825

JSON object : View

Products Affected

yhirose

cpp-httplib

CWE

CWE-113

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

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