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CVE-2026-22776

🔴 HIGH

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.30.1, a Denial of Service (DoS) vulnerability exists in cpp-httplib due to the unsafe handling of c...

Published
Jan 12, 2026
Last Modified
Jan 15, 2026
Views
12
Bookmarks
0

Description

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cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.30.1, a Denial of Service (DoS) vulnerability exists in cpp-httplib due to the unsafe handling of compressed HTTP request bodies (Content-Encoding: gzip, br, etc.). The library validates the payload_max_length against the compressed data size received from the network, but does not limit the size of the decompressed data stored in memory.

Affected Products (1)

yhirose - cpp-httplib

Version: *

CVSS Scores

CVSS 3.1 7.5
7.5
HIGH
CVSS 2.0 7.5

References

github.com github.com

Additional Information

Source
security-advisories@github.com
State
Analyzed

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