CVE-2026-55795: Craft Commerce: Coupon Code Brute-Force via Rate Limit Bypass

June 19, 2026

The CartController defines a RateLimiter behavior that is only activated when the ’number’ POST/GET parameter is explicitly provided.

References

github.com/advisories/GHSA-h5gm-x9wr-vhcm
github.com/craftcms/commerce/commit/df22c4f9c4ea7fb7857d833f755e49ea6f9f5bb5
github.com/craftcms/commerce/security/advisories/GHSA-h5gm-x9wr-vhcm
nvd.nist.gov/vuln/detail/CVE-2026-55795

Code Behaviors & Features

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