UBUNTU-CVE-2026-55677

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Source
https://ubuntu.com/security/CVE-2026-55677
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55677.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-55677
Upstream
Published
2026-06-26T17:16:00Z
Modified
2026-06-29T23:19:13.910675849Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, Echo's router and static file handler disagree on URL path decoding. The router matches routes using the raw encoded path (preserving %2F as-is), while StaticDirectoryHandler unescapes %2F to / before resolving filesystem paths. This allows an attacker to bypass route-level access controls and read static files without authorization. This vulnerability is fixed in 4.15.3 and 5.2.0.

References

Affected packages

Ubuntu:20.04:LTS
golang-github-labstack-echo.v2

Package

Name
golang-github-labstack-echo.v2
Purl
pkg:deb/ubuntu/golang-github-labstack-echo.v2?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.2.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-labstack-echo.v2-dev",
            "binary_version": "2.2.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55677.json"
golang-github-labstack-echo.v3

Package

Name
golang-github-labstack-echo.v3
Purl
pkg:deb/ubuntu/golang-github-labstack-echo.v3?arch=source&distro=focal

Affected ranges

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

Affected versions

3.*
3.3.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-labstack-echo.v3-dev",
            "binary_version": "3.3.5-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55677.json"
Ubuntu:22.04:LTS
golang-github-labstack-echo

Package

Name
golang-github-labstack-echo
Purl
pkg:deb/ubuntu/golang-github-labstack-echo?arch=source&distro=jammy

Affected ranges

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

Affected versions

4.*
4.2.1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-labstack-echo-dev",
            "binary_version": "4.2.1-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55677.json"
golang-github-labstack-echo.v2

Package

Name
golang-github-labstack-echo.v2
Purl
pkg:deb/ubuntu/golang-github-labstack-echo.v2?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*
2.2.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-labstack-echo.v2-dev",
            "binary_version": "2.2.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55677.json"
golang-github-labstack-echo.v3

Package

Name
golang-github-labstack-echo.v3
Purl
pkg:deb/ubuntu/golang-github-labstack-echo.v3?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.3.10-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-labstack-echo.v3-dev",
            "binary_version": "3.3.10-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55677.json"
Ubuntu:24.04:LTS
golang-github-labstack-echo

Package

Name
golang-github-labstack-echo
Purl
pkg:deb/ubuntu/golang-github-labstack-echo?arch=source&distro=noble

Affected ranges

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

Affected versions

4.*
4.11.1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-labstack-echo-dev",
            "binary_version": "4.11.1-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55677.json"
Ubuntu:25.10
golang-github-labstack-echo

Package

Name
golang-github-labstack-echo
Purl
pkg:deb/ubuntu/golang-github-labstack-echo?arch=source&distro=questing

Affected ranges

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

Affected versions

4.*
4.12.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-labstack-echo-dev",
            "binary_version": "4.12.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55677.json"
Ubuntu:26.04:LTS
golang-github-labstack-echo

Package

Name
golang-github-labstack-echo
Purl
pkg:deb/ubuntu/golang-github-labstack-echo?arch=source&distro=resolute

Affected ranges

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

Affected versions

4.*
4.12.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-labstack-echo-dev",
            "binary_version": "4.12.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55677.json"