UBUNTU-CVE-2026-32726

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Source
https://ubuntu.com/security/CVE-2026-32726
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32726.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-32726
Upstream
Published
2026-03-31T18:16:00Z
Modified
2026-05-20T16:25:22.147874814Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1, scitokens-cpp is vulnerable to an authorization bypass in path-based scope validation. The enforcer used a simple string-prefix comparison when checking whether a requested resource path was covered by a token's authorized scope path. Because the check did not require a path-segment boundary, a token scoped to one path could incorrectly authorize access to sibling paths that merely started with the same prefix. This issue has been patched in version 1.4.1.

References

Affected packages

Ubuntu:22.04:LTS / scitokens-cpp

Package

Name
scitokens-cpp
Purl
pkg:deb/ubuntu/scitokens-cpp?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.5.1-2
0.6.2-1
0.6.2-1ubuntu1
0.6.2-2
0.7.0-1
0.7.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libscitokens0",
            "binary_version": "0.7.0-2"
        },
        {
            "binary_name": "scitokens-cpp",
            "binary_version": "0.7.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32726.json"

Ubuntu:24.04:LTS / scitokens-cpp

Package

Name
scitokens-cpp
Purl
pkg:deb/ubuntu/scitokens-cpp?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.0.2-1
1.1.0-1
1.1.0-1.1
1.1.0-1.1build2
1.1.0-1.1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libscitokens0t64",
            "binary_version": "1.1.0-1.1build3"
        },
        {
            "binary_name": "scitokens-cpp",
            "binary_version": "1.1.0-1.1build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32726.json"

Ubuntu:25.10 / scitokens-cpp

Package

Name
scitokens-cpp
Purl
pkg:deb/ubuntu/scitokens-cpp?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.1.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libscitokens0t64",
            "binary_version": "1.1.3-1"
        },
        {
            "binary_name": "scitokens-cpp",
            "binary_version": "1.1.3-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32726.json"

Ubuntu:26.04:LTS / scitokens-cpp

Package

Name
scitokens-cpp
Purl
pkg:deb/ubuntu/scitokens-cpp?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.1.3-1
1.2.0-1
1.3.0-1
1.3.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libscitokens0t64",
            "binary_version": "1.3.0-2"
        },
        {
            "binary_name": "scitokens-cpp",
            "binary_version": "1.3.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32726.json"