9.1
Critique
CVE-2026-73253 Mongoose is an embedded web server and network library
Description
Mongoose is an embedded web server and network library. Prior to version 7.22, an on-path network attacker with a wildcard certificate for a parent domain can impersonate deeper subdomains to a client using the built-in TLS stack. The mg_tls_verify_cert_san() and mg_tls_verify_cert_cn() functions in src/tls_builtin.c call mg_match(), whose wildcard can cross DNS label boundaries, so a pattern such as *.example.com can match foo.bar.example.com. The resulting hostname verification bypass permits interception and modification of TLS traffic. This issue is fixed in version 7.22.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Mongoose 7.22 | premières → < 7.22 | 7.22 |
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