#VU123627 Improper handling of highly compressed data in Cpp-httplib - CVE-2026-28435

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Main Vulnerability Database Vulnerabilities #VU123627

#VU123627 Improper handling of highly compressed data in Cpp-httplib - CVE-2026-28435

Published: March 9, 2026


Vulnerability identifier: #VU123627
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-28435
CWE-ID: CWE-409
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cpp-httplib
Software vendor:
Cpp-httplib Project

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the application does not enforce Server::set_payload_max_length() on the decompressed request body when using HandlerWithContentReader. A remote attacker can supply a specially crafted gzip data to the application and consume all available CPU and memory resources leading to a denial of service condition.


Remediation

Install updates from vendor's website.

External links