EXECUTIVE SUMMARY:
CVE-2026-53624 with a CVSS score of 4.8 is a bypass vulnerability affecting the GoFiber web framework, specifically versions. The issue resides in the helmet middleware, which fails to set the HTTP Strict Transport Security (HSTS) response header due to a logic error that incorrectly compares the protocol version string against "https" rather than checking the URL scheme. Consequently, an attacker positioned on the network can exploit this flaw by intercepting traffic, specifically leveraging the missing HSTS enforcement to perform SSL stripping attacks. This capability allows the adversary to downgrade secure HTTPS connections to unencrypted HTTP, enabling the theft of sensitive information. The business impact is significant, as successful exploitation exposes user data to interception and manipulation, severely undermining trust in the application's security posture. Exploitation requires that an administrator has explicitly configured the HSTSMaxAge setting, yet the vulnerability remains active because the protective header is never actually applied in production environments.[/subscribe_to_unlock_form]
EXECUTIVE SUMMARY:
CVE-2026-53624 with a CVSS score of 4.8 is a bypass vulnerability affecting the GoFiber web framework, specifically versions. The issue resides in the helmet middleware, which fails to set the HTTP Strict Transport Security (HSTS) response header due to a logic error that incorrectly compares the protocol version string against "https" rather than checking the URL scheme. Consequently, an attacker positioned on the network can exploit this flaw by intercepting traffic, specifically leveraging the missing HSTS enforcement to perform SSL stripping attacks. This capability allows the adversary to downgrade secure HTTPS connections to unencrypted HTTP, enabling the theft of sensitive information. The business impact is significant, as successful exploitation exposes user data to interception and manipulation, severely undermining trust in the application's security posture. Exploitation requires that an administrator has explicitly configured the HSTSMaxAge setting, yet the vulnerability remains active because the protective header is never actually applied in production environments.[emaillocker id="1283"]
RECOMMENDATION:
REFERENCES:
The following reports contain further technical details:
https://github.com/advisories/GHSA-gv83-gqw6-9j2c