HTTP Request Smuggling Affecting libcpp-httplib0_22 package, versions <0.22.0-160000.4.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.52% (43rd percentile)

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  • Snyk IDSNYK-SLES1600-LIBCPPHTTPLIB022-15428803
  • published6 Mar 2026
  • disclosed2 Mar 2026

Introduced: 2 Mar 2026

CVE-2025-53628  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 libcpp-httplib0_22 to version 0.22.0-160000.4.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcpp-httplib0_22 package and not the libcpp-httplib0_22 package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

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 Base Scores

version 3.1