How severe is CVE-2026-53624?

CVE-2026-53624 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-53624 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-53624?

CVE-2026-53624 affects Gofiber Fiber. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-53624?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-53624 published?

CVE-2026-53624 was published on 2026-07-08 and last updated on 2026-07-15.

CVE-2026-53624

CVE-2026-53624 is a medium-severity vulnerability in Gofiber Fiber with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-319.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Gofiber Fiber
Published: 2026-07-08
Last modified: 2026-07-15

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-53624?: CVE-2026-53624 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-53624 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-53624?: CVE-2026-53624 affects Gofiber Fiber. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-53624?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-53624 published?: CVE-2026-53624 was published on 2026-07-08 and last updated on 2026-07-15.

References

Affected products (1)

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

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