CVE-2025-53628

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.20.1, cpp-httplib does not have a limit for a unique line, permitting an attacker to explore this to allocate memory arbitrarily. This vulnerability is fixed in 0.20.1. NOTE: This vulnerability is related to CVE-2025-53629.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/yhirose/cpp-httplib/commit/7b752106ac42bd5b907793950d9125a0972c8e8e	Patch
https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-j6p8-779x-p5pw	Vendor Advisory Exploit
https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-qjmq-h3cc-qv6w	Not Applicable
https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-j6p8-779x-p5pw	Vendor Advisory Exploit

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2025-07-10 20:15

Updated : 2025-08-06 18:08

NVD link : CVE-2025-53628

Mitre link : CVE-2025-53628

CVE.ORG link : CVE-2025-53628

JSON object : View

Products Affected

yhirose

cpp-httplib

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

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