UBUNTU-CVE-2026-35535

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Source
https://ubuntu.com/security/CVE-2026-35535
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35535.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-35535
Upstream
  • CVE-2026-35535
Related
Published
2026-04-03T03:16:00Z
Modified
2026-06-04T12:45:26.122299849Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - high
Summary
[none]
Details

In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.

References

Affected packages

Ubuntu:22.04:LTS / sudo

Package

Name
sudo
Purl
pkg:deb/ubuntu/sudo?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.9-1ubuntu2.6

Affected versions

1.*
1.9.5p2-3ubuntu2
1.9.9-1ubuntu2
1.9.9-1ubuntu2.1
1.9.9-1ubuntu2.2
1.9.9-1ubuntu2.3
1.9.9-1ubuntu2.4
1.9.9-1ubuntu2.5

Ecosystem specific 

{
    "availability": "No subscription required",
    "priority_reason": "Local privilege escalation to the root user.",
    "binaries": [
        {
            "binary_name": "sudo",
            "binary_version": "1.9.9-1ubuntu2.6"
        },
        {
            "binary_name": "sudo-ldap",
            "binary_version": "1.9.9-1ubuntu2.6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35535.json"

Ubuntu:24.04:LTS / sudo

Package

Name
sudo
Purl
pkg:deb/ubuntu/sudo?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.15p5-3ubuntu5.24.04.2

Affected versions

1.*
1.9.14p2-1ubuntu1
1.9.15p5-3ubuntu1
1.9.15p5-3ubuntu3
1.9.15p5-3ubuntu4
1.9.15p5-3ubuntu5
1.9.15p5-3ubuntu5.24.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "priority_reason": "Local privilege escalation to the root user.",
    "binaries": [
        {
            "binary_name": "libnss-sudo",
            "binary_version": "1.9.15p5-3ubuntu5.24.04.2"
        },
        {
            "binary_name": "sudo",
            "binary_version": "1.9.15p5-3ubuntu5.24.04.2"
        },
        {
            "binary_name": "sudo-ldap",
            "binary_version": "1.9.15p5-3ubuntu5.24.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35535.json"

Ubuntu:25.10 / sudo

Package

Name
sudo
Purl
pkg:deb/ubuntu/sudo?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.17p2-1ubuntu1.1

Affected versions

1.*
1.9.16p2-1ubuntu1
1.9.16p2-1ubuntu4
1.9.16p2-3ubuntu2
1.9.17p2-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "priority_reason": "Local privilege escalation to the root user.",
    "binaries": [
        {
            "binary_name": "libnss-sudo",
            "binary_version": "1.9.17p2-1ubuntu1.1"
        },
        {
            "binary_name": "sudo",
            "binary_version": "1.9.17p2-1ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35535.json"