CVE-2026-53624

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.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/gofiber/fiber/commit/04dd4e7754f61768fddccacc79057e416f13e6bf	Patch
https://github.com/gofiber/fiber/pull/4389	Issue Tracking Patch
https://github.com/gofiber/fiber/releases/tag/v3.4.0	Release Notes
https://github.com/gofiber/fiber/security/advisories/GHSA-gv83-gqw6-9j2c	Exploit Vendor Advisory
https://github.com/gofiber/fiber/security/advisories/GHSA-gv83-gqw6-9j2c	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gofiber:fiber:*:*:*:*:*:go:*:*

History

25 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) Fiber es un framework web inspirado en Express escrito en Go. Antes de la versión 3.4.0, el middleware helmet en middleware/helmet/helmet.go nunca establece el encabezado de respuesta Strict-Transport-Security incluso cuando HSTSMaxAge está configurado porque comprueba c.Protocol() para HTTPS en lugar de c.Scheme(). Este problema está solucionado en la versión 3.4.0.

Information

Published : 2026-07-08 20:16

Updated : 2026-10-25 17:10

NVD link : CVE-2026-53624

Mitre link : CVE-2026-53624

CVE.ORG link : CVE-2026-53624

JSON object : View

Products Affected

gofiber

fiber

CWE

CWE-319

Cleartext Transmission of Sensitive Information

{"id": "CVE-2026-53624", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53624", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-10T14:57:02.119046Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "gofiber", "product": "fiber", "versions": [{"status": "affected", "version": "< 3.4.0"}]}]}], "published": "2026-07-08T20:16:52.293", "references": [{"url": "https://github.com/gofiber/fiber/commit/04dd4e7754f61768fddccacc79057e416f13e6bf", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/gofiber/fiber/pull/4389", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/gofiber/fiber/releases/tag/v3.4.0", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/gofiber/fiber/security/advisories/GHSA-gv83-gqw6-9j2c", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/gofiber/fiber/security/advisories/GHSA-gv83-gqw6-9j2c", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-319"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Fiber es un framework web inspirado en Express escrito en Go. Antes de la versi\u00f3n 3.4.0, el middleware helmet en middleware/helmet/helmet.go nunca establece el encabezado de respuesta Strict-Transport-Security incluso cuando HSTSMaxAge est\u00e1 configurado porque comprueba c.Protocol() para HTTPS en lugar de c.Scheme(). Este problema est\u00e1 solucionado en la versi\u00f3n 3.4.0."}], "lastModified": "2026-10-25T17:10:00.197", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gofiber:fiber:*:*:*:*:*:go:*:*", "vulnerable": true, "matchCriteriaId": "6AD5DCD5-8A1A-494B-AEB2-38E8CCAC5462", "versionEndExcluding": "3.4.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}