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High severity7.5NVD Advisory· Published Jun 26, 2025· Updated Jun 17, 2026

CVE-2025-52887

CVE-2025-52887

Description

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. In version 0.21.0, when many http headers fields are passed in, the library does not limit the number of headers, and the memory associated with the headers will not be released when the connection is disconnected. This leads to potential exhaustion of system memory and results in a server crash or unresponsiveness. Version 0.22.0 contains a patch for the issue.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Yhirose/Cpp Httplib2 versions
    cpe:2.3:a:yhirose:cpp-httplib:0.21.0:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:yhirose:cpp-httplib:0.21.0:*:*:*:*:*:*:*
    • (no CPE)range: = 0.21.0
  • Cpp Httplib/cpp-httplibllm-fuzzy
    Range: <=0.21.0

Patches

Vulnerability mechanics

References

2

News mentions

0

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