Haxx

Haxx maintains curl and libcurl, a widely embedded transfer library and command-line tool that sit deep in the software supply chain and power HTTP/HTTPS operations across servers, appliances, applications, and development tools. Despite the narrow product portfolio, the vendor's prominence in the landscape stems from the ubiquity of these tools in both internet-facing and internal infrastructure, creating a broad downstream impact when vulnerabilities surface. Vulnerabilities affecting this vendor skew toward serious outcomes, with a meaningful share reaching critical severity, and recur through weakness classes including improper certificate validation, sensitive information exposure, out-of-bounds reads, and memory-buffer handling flaws that reflect the parsing and cryptographic demands of a TLS-enabled transfer library. Defenders should prioritize curl and libcurl updates as widely applicable across diverse systems and treat exposed or embedded instances as a patching priority, since remediation often requires rebuilding downstream products that link the library. Current severity, exploitation activity, and exposure counts are shown alongside this summary.