Answer in brief
CVE-2026-53624 records a Medium severity (CVSS 4.8) vulnerability in Fiber: HSTS header never set in helmet middleware due to incorrect protocol check. The current sources do not mark it as known exploited. The current feed maps gofiber/fiber (generic), github.com/gofiber/fiber (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps gofiber/fiber (generic), github.com/gofiber/fiber (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| gofiber/fibergeneric | < 3.4.0 | Not reported |
| github.com/gofiber/fibergo | <=3.3.0 | 3.4.0 |
Published upstream
Jul 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-53624 records a Medium severity (CVSS 4.8) vulnerability in Fiber: HSTS header never set in helmet middleware due to incorrect protocol check. The current sources do not mark it as known exploited. The current feed maps gofiber/fiber (generic), github.com/gofiber/fiber (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps gofiber/fiber (generic), github.com/gofiber/fiber (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| gofiber/fibergeneric | < 3.4.0 | Not reported |
| github.com/gofiber/fibergo | <=3.3.0 | 3.4.0 |
Published upstream
Jul 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.