CVE-2026-53624
Last modified
CVE-2026-53624 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Fiber is an Express inspired web framework written in Go. Prior to 3.4.0, the helmet middleware in middleware/helmet/helmet.go never sets the Strict-Transport-Security response header even when HSTSMaxAge is configured because it checks c.Protocol() for https instead of c.Scheme(). EPSS estimates a 0.21% chance of exploitation in the next 30 days.
Description
Fiber is an Express inspired web framework written in Go. Prior to 3.4.0, the helmet middleware in middleware/helmet/helmet.go never sets the Strict-Transport-Security response header even when HSTSMaxAge is configured because it checks c.Protocol() for https instead of c.Scheme(). This issue is fixed in version 3.4.0.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gofiber | Fiber | < 3.4.0 |
References
- https://github.com/gofiber/fiber/pull/4389Issue Tracking, Patch
- https://github.com/gofiber/fiber/releases/tag/v3.4.0Release Notes
- https://github.com/gofiber/fiber/security/advisories/GHSA-gv83-gqw6-9j2cExploit, Vendor Advisory
- https://github.com/gofiber/fiber/security/advisories/GHSA-gv83-gqw6-9j2cExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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