UBUNTU-CVE-2026-45045

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Source
https://ubuntu.com/security/CVE-2026-45045
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45045.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-45045
Upstream
Published
2026-07-08T20:16:00Z
Modified
2026-10-17T12:58:22Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:26.10 / golang-github-gofiber-fiber

Package

Name
golang-github-gofiber-fiber
Purl
pkg:deb/ubuntu/golang-github-gofiber-fiber?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.3.0-1
3.4.0-1
3.5.0-1
3.5.0-4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "golang-github-gofiber-fiber-dev",
            "binary_version":  "3.5.0-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45045.json"

Ubuntu:26.10 / golang-github-gofiber-fiber-v2

Package

Name
golang-github-gofiber-fiber-v2
Purl
pkg:deb/ubuntu/golang-github-gofiber-fiber-v2?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.52.13-2
2.52.13-3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "golang-github-gofiber-fiber-v2-dev",
            "binary_version":  "2.52.13-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45045.json"