UBUNTU-CVE-2026-119285

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Source

https://ubuntu.com/security/CVE-2026-119285

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119285.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-119285

Upstream

CVE-2026-119285

Published

2026-10-30T00:00:00Z

Modified

2026-10-31T03:30:03Z

Severity

5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Fiber is an Express inspired web framework written in Go. From 2.52.1 until 2.52.3, the CORS middleware's validateDomain wildcard matcher in middleware/cors/utils.go strips the scheme and checks only a host suffix without requiring a dot boundary. An application configured with a wildcard-subdomain AllowOrigins value and AllowCredentials enabled can reflect an unrelated attacker-controlled origin whose host merely ends with the configured base domain. A user who visits that origin can expose authenticated cross-origin responses to the attacker's page; empty-label origins and later comma-space parsing hardening are outside this advisory. This issue is fixed in version 2.52.3.

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-2026-119285.json"

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