UBUNTU-CVE-2026-82474

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Source
https://ubuntu.com/security/CVE-2026-82474
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82474.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-82474
Upstream
Downstream
Related
Published
2026-08-29T17:17:00Z
Modified
2026-09-23T02:00:06Z
Severity
  • 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
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging.

References

Affected packages

Ubuntu:24.04:LTS / sudo

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.9.15p5-3ubuntu5.24.04.3

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
1.9.15p5-3ubuntu5.24.04.2

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libnss-sudo",
            "binary_version":  "1.9.15p5-3ubuntu5.24.04.3"
        },
        {
            "binary_name":  "sudo",
            "binary_version":  "1.9.15p5-3ubuntu5.24.04.3"
        },
        {
            "binary_name":  "sudo-ldap",
            "binary_version":  "1.9.15p5-3ubuntu5.24.04.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82474.json"

Ubuntu:26.04:LTS / sudo

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.9.17p2-1ubuntu3.1

Affected versions

1.*
1.9.17p2-1ubuntu1
1.9.17p2-1ubuntu2
1.9.17p2-1ubuntu3

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libnss-sudo",
            "binary_version":  "1.9.17p2-1ubuntu3.1"
        },
        {
            "binary_name":  "sudo",
            "binary_version":  "1.9.17p2-1ubuntu3.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82474.json"