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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-45045

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0 and 2.52.14, the BalancerForward proxy helper in middleware/proxy/proxy.go uses Header.Add() instead of Header.Set() when injecting X-Real-IP, allowing an attacker-supplied first X-Real-IP value to be forwarded to upstream servers for logging, rate limiting, and access control. This issue is fixed in version 3.3.0 and 2.52.14.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 36.7%
CVSS Severity
CVSS v3 Score 5.3
Products affected by CVE-2026-45045
  • Gofiber » Fiber » Version: N/A
    cpe:2.3:a:gofiber:fiber:-
  • Gofiber » Fiber » Version: 1.14.1
    cpe:2.3:a:gofiber:fiber:1.14.1
  • Gofiber » Fiber » Version: 1.14.2
    cpe:2.3:a:gofiber:fiber:1.14.2
  • Gofiber » Fiber » Version: 1.14.3
    cpe:2.3:a:gofiber:fiber:1.14.3
  • Gofiber » Fiber » Version: 1.14.4
    cpe:2.3:a:gofiber:fiber:1.14.4
  • Gofiber » Fiber » Version: 1.14.5
    cpe:2.3:a:gofiber:fiber:1.14.5
  • Gofiber » Fiber » Version: 1.14.6
    cpe:2.3:a:gofiber:fiber:1.14.6
  • Gofiber » Fiber » Version: 2.0.0
    cpe:2.3:a:gofiber:fiber:2.0.0
  • Gofiber » Fiber » Version: 2.0.1
    cpe:2.3:a:gofiber:fiber:2.0.1
  • Gofiber » Fiber » Version: 2.0.2
    cpe:2.3:a:gofiber:fiber:2.0.2
  • Gofiber » Fiber » Version: 2.0.3
    cpe:2.3:a:gofiber:fiber:2.0.3
  • Gofiber » Fiber » Version: 2.0.4
    cpe:2.3:a:gofiber:fiber:2.0.4
  • Gofiber » Fiber » Version: 2.0.5
    cpe:2.3:a:gofiber:fiber:2.0.5
  • Gofiber » Fiber » Version: 2.0.6
    cpe:2.3:a:gofiber:fiber:2.0.6
  • Gofiber » Fiber » Version: 2.1.0
    cpe:2.3:a:gofiber:fiber:2.1.0
  • Gofiber » Fiber » Version: 2.1.1
    cpe:2.3:a:gofiber:fiber:2.1.1
  • Gofiber » Fiber » Version: 2.1.2
    cpe:2.3:a:gofiber:fiber:2.1.2
  • Gofiber » Fiber » Version: 2.1.3
    cpe:2.3:a:gofiber:fiber:2.1.3
  • Gofiber » Fiber » Version: 2.1.4
    cpe:2.3:a:gofiber:fiber:2.1.4
  • Gofiber » Fiber » Version: 2.10.0
    cpe:2.3:a:gofiber:fiber:2.10.0
  • Gofiber » Fiber » Version: 2.11.0
    cpe:2.3:a:gofiber:fiber:2.11.0
  • Gofiber » Fiber » Version: 2.12.0
    cpe:2.3:a:gofiber:fiber:2.12.0
  • Gofiber » Fiber » Version: 2.13.0
    cpe:2.3:a:gofiber:fiber:2.13.0
  • Gofiber » Fiber » Version: 2.14.0
    cpe:2.3:a:gofiber:fiber:2.14.0
  • Gofiber » Fiber » Version: 2.15.0
    cpe:2.3:a:gofiber:fiber:2.15.0
  • Gofiber » Fiber » Version: 2.16.0
    cpe:2.3:a:gofiber:fiber:2.16.0
  • Gofiber » Fiber » Version: 2.17.0
    cpe:2.3:a:gofiber:fiber:2.17.0
  • Gofiber » Fiber » Version: 2.18.0
    cpe:2.3:a:gofiber:fiber:2.18.0
  • Gofiber » Fiber » Version: 2.19.0
    cpe:2.3:a:gofiber:fiber:2.19.0
  • Gofiber » Fiber » Version: 2.2.0
    cpe:2.3:a:gofiber:fiber:2.2.0
  • Gofiber » Fiber » Version: 2.2.1
    cpe:2.3:a:gofiber:fiber:2.2.1
  • Gofiber » Fiber » Version: 2.2.2
    cpe:2.3:a:gofiber:fiber:2.2.2
  • Gofiber » Fiber » Version: 2.2.3
    cpe:2.3:a:gofiber:fiber:2.2.3
  • Gofiber » Fiber » Version: 2.2.4
    cpe:2.3:a:gofiber:fiber:2.2.4
  • Gofiber » Fiber » Version: 2.2.5
    cpe:2.3:a:gofiber:fiber:2.2.5
  • Gofiber » Fiber » Version: 2.20.0
    cpe:2.3:a:gofiber:fiber:2.20.0
  • Gofiber » Fiber » Version: 2.20.1
    cpe:2.3:a:gofiber:fiber:2.20.1
  • Gofiber » Fiber » Version: 2.20.2
    cpe:2.3:a:gofiber:fiber:2.20.2
  • Gofiber » Fiber » Version: 2.21.0
    cpe:2.3:a:gofiber:fiber:2.21.0
  • Gofiber » Fiber » Version: 2.22.0
    cpe:2.3:a:gofiber:fiber:2.22.0
  • Gofiber » Fiber » Version: 2.23.0
    cpe:2.3:a:gofiber:fiber:2.23.0
  • Gofiber » Fiber » Version: 2.24.0
    cpe:2.3:a:gofiber:fiber:2.24.0
  • Gofiber » Fiber » Version: 2.25.0
    cpe:2.3:a:gofiber:fiber:2.25.0
  • Gofiber » Fiber » Version: 2.26.0
    cpe:2.3:a:gofiber:fiber:2.26.0
  • Gofiber » Fiber » Version: 2.27.0
    cpe:2.3:a:gofiber:fiber:2.27.0
  • Gofiber » Fiber » Version: 2.28.0
    cpe:2.3:a:gofiber:fiber:2.28.0
  • Gofiber » Fiber » Version: 2.29.0
    cpe:2.3:a:gofiber:fiber:2.29.0
  • Gofiber » Fiber » Version: 2.3.0
    cpe:2.3:a:gofiber:fiber:2.3.0
  • Gofiber » Fiber » Version: 2.3.1
    cpe:2.3:a:gofiber:fiber:2.3.1
  • Gofiber » Fiber » Version: 2.3.2
    cpe:2.3:a:gofiber:fiber:2.3.2
  • Gofiber » Fiber » Version: 2.3.3
    cpe:2.3:a:gofiber:fiber:2.3.3
  • Gofiber » Fiber » Version: 2.30.0
    cpe:2.3:a:gofiber:fiber:2.30.0
  • Gofiber » Fiber » Version: 2.31.0
    cpe:2.3:a:gofiber:fiber:2.31.0
  • Gofiber » Fiber » Version: 2.32.0
    cpe:2.3:a:gofiber:fiber:2.32.0
  • Gofiber » Fiber » Version: 2.33.0
    cpe:2.3:a:gofiber:fiber:2.33.0
  • Gofiber » Fiber » Version: 2.34.0
    cpe:2.3:a:gofiber:fiber:2.34.0
  • Gofiber » Fiber » Version: 2.34.1
    cpe:2.3:a:gofiber:fiber:2.34.1
  • Gofiber » Fiber » Version: 2.35.0
    cpe:2.3:a:gofiber:fiber:2.35.0
  • Gofiber » Fiber » Version: 2.36.0
    cpe:2.3:a:gofiber:fiber:2.36.0
  • Gofiber » Fiber » Version: 2.37.0
    cpe:2.3:a:gofiber:fiber:2.37.0
  • Gofiber » Fiber » Version: 2.37.1
    cpe:2.3:a:gofiber:fiber:2.37.1
  • Gofiber » Fiber » Version: 2.38.0
    cpe:2.3:a:gofiber:fiber:2.38.0
  • Gofiber » Fiber » Version: 2.38.1
    cpe:2.3:a:gofiber:fiber:2.38.1
  • Gofiber » Fiber » Version: 2.39.0
    cpe:2.3:a:gofiber:fiber:2.39.0
  • Gofiber » Fiber » Version: 2.4.0
    cpe:2.3:a:gofiber:fiber:2.4.0
  • Gofiber » Fiber » Version: 2.4.1
    cpe:2.3:a:gofiber:fiber:2.4.1
  • Gofiber » Fiber » Version: 2.40.0
    cpe:2.3:a:gofiber:fiber:2.40.0
  • Gofiber » Fiber » Version: 2.40.1
    cpe:2.3:a:gofiber:fiber:2.40.1
  • Gofiber » Fiber » Version: 2.41.0
    cpe:2.3:a:gofiber:fiber:2.41.0
  • Gofiber » Fiber » Version: 2.42.0
    cpe:2.3:a:gofiber:fiber:2.42.0
  • Gofiber » Fiber » Version: 2.43.0
    cpe:2.3:a:gofiber:fiber:2.43.0
  • Gofiber » Fiber » Version: 2.44.0
    cpe:2.3:a:gofiber:fiber:2.44.0
  • Gofiber » Fiber » Version: 2.45.0
    cpe:2.3:a:gofiber:fiber:2.45.0
  • Gofiber » Fiber » Version: 2.46.0
    cpe:2.3:a:gofiber:fiber:2.46.0
  • Gofiber » Fiber » Version: 2.47.0
    cpe:2.3:a:gofiber:fiber:2.47.0
  • Gofiber » Fiber » Version: 2.48.0
    cpe:2.3:a:gofiber:fiber:2.48.0
  • Gofiber » Fiber » Version: 2.49.0
    cpe:2.3:a:gofiber:fiber:2.49.0
  • Gofiber » Fiber » Version: 2.49.1
    cpe:2.3:a:gofiber:fiber:2.49.1
  • Gofiber » Fiber » Version: 2.49.2
    cpe:2.3:a:gofiber:fiber:2.49.2
  • Gofiber » Fiber » Version: 2.5.0
    cpe:2.3:a:gofiber:fiber:2.5.0
  • Gofiber » Fiber » Version: 2.50.0
    cpe:2.3:a:gofiber:fiber:2.50.0
  • Gofiber » Fiber » Version: 2.51.0
    cpe:2.3:a:gofiber:fiber:2.51.0
  • Gofiber » Fiber » Version: 2.52.0
    cpe:2.3:a:gofiber:fiber:2.52.0
  • Gofiber » Fiber » Version: 2.52.1
    cpe:2.3:a:gofiber:fiber:2.52.1
  • Gofiber » Fiber » Version: 2.52.10
    cpe:2.3:a:gofiber:fiber:2.52.10
  • Gofiber » Fiber » Version: 2.52.11
    cpe:2.3:a:gofiber:fiber:2.52.11
  • Gofiber » Fiber » Version: 2.52.12
    cpe:2.3:a:gofiber:fiber:2.52.12
  • Gofiber » Fiber » Version: 2.52.13
    cpe:2.3:a:gofiber:fiber:2.52.13
  • Gofiber » Fiber » Version: 2.52.2
    cpe:2.3:a:gofiber:fiber:2.52.2
  • Gofiber » Fiber » Version: 2.52.3
    cpe:2.3:a:gofiber:fiber:2.52.3
  • Gofiber » Fiber » Version: 2.52.4
    cpe:2.3:a:gofiber:fiber:2.52.4
  • Gofiber » Fiber » Version: 2.52.5
    cpe:2.3:a:gofiber:fiber:2.52.5
  • Gofiber » Fiber » Version: 2.52.6
    cpe:2.3:a:gofiber:fiber:2.52.6
  • Gofiber » Fiber » Version: 2.52.7
    cpe:2.3:a:gofiber:fiber:2.52.7
  • Gofiber » Fiber » Version: 2.52.8
    cpe:2.3:a:gofiber:fiber:2.52.8
  • Gofiber » Fiber » Version: 2.52.9
    cpe:2.3:a:gofiber:fiber:2.52.9
  • Gofiber » Fiber » Version: 2.6.0
    cpe:2.3:a:gofiber:fiber:2.6.0
  • Gofiber » Fiber » Version: 2.7.0
    cpe:2.3:a:gofiber:fiber:2.7.0
  • Gofiber » Fiber » Version: 2.7.1
    cpe:2.3:a:gofiber:fiber:2.7.1
  • Gofiber » Fiber » Version: 2.8.0
    cpe:2.3:a:gofiber:fiber:2.8.0
  • Gofiber » Fiber » Version: 2.9.0
    cpe:2.3:a:gofiber:fiber:2.9.0


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