Vulnerability DatabaseCVE-2025-53628
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CVE-2025-53628
July 10, 2025
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.
Affected Packages
cpp-httplib (CONAN):
Affected version(s) >=0.5.13 <0.20.1
Fix Suggestion:
Update to version 0.20.1
https://github.com/yhirose/cpp-httplib.git (GITHUB):
Affected version(s) >=v0.2.0 <v0.20.1
Fix Suggestion:
Update to version v0.20.1
Related Resources (3)
https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-qjmq-h3cc-qv6w
https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-j6p8-779x-p5pw
https://github.com/yhirose/cpp-httplib/commit/7b752106ac42bd5b907793950d9125a0972c8e8e
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-835
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CWE-444
Allocation of Resources Without Limits or Throttling
CWE-770
EPSS
Base Score:
0.03