Fiber: HSTS header never set in helmet middleware due to incorrect protocol check

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Summary

CVECVE-2026-53624
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-08 20:16:52 UTC
Updated2026-07-10 16:16:32 UTC
DescriptionFiber 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.

Risk And Classification

Primary CVSS: v3.1 4.8 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.002070000 probability, percentile 0.108330000 (date 2026-07-09)

Problem Types: CWE-319 | CWE-319 CWE-319: Cleartext Transmission of Sensitive Information

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1CNADECLARED4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Gofiber Fiber affected < 3.4.0 Not specified

References

ReferenceSourceLinkTags
github.com/gofiber/fiber/pull/4389 [email protected] github.com
github.com/gofiber/fiber/commit/04dd4e7754f61768fddccacc79057e416f13e6bf [email protected] github.com
github.com/gofiber/fiber/security/advisories/GHSA-gv83-gqw6-9j2c 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/gofiber/fiber/releases/tag/v3.4.0 [email protected] github.com
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