CVE-2026-22776
7.5 · HIGHOverview
CVE-2026-22776 is a high-severity vulnerability affecting yhirose cpp-httplib. It was published on January 12, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from yhirose. Update cpp-httplib to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| yhirose | cpp-httplib | >= 0, < 0.30.1 | Affected |
Frequently Asked Questions
What is CVE-2026-22776?
CVE-2026-22776 is a high-severity vulnerability affecting yhirose cpp-httplib. It was published on January 12, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-22776?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-22776?
Check the references section for vendor advisories and patches from yhirose. Update cpp-httplib to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-22776?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-22776 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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