UBUNTU-CVE-2026-61897

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-61897
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61897.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-61897
Upstream
  • CVE-2026-61897
Downstream
Related
Published
2026-07-21T16:00:00Z
Modified
2026-09-02T19:36:26Z
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
  • Ubuntu - high
Summary
[none]
Details

An Ubuntu-specific patch to AccountsService before 23.13.9-8ubuntu7 only partially drops privileges before launching language helper scripts. It changes the effective UID/GID to the target user but leaves the real UID as 0 (root). A shell spawned by a helper script inherits ruid=0 and may reset its effective UID to root, enabling local privilege escalation.

References

Affected packages

Ubuntu:22.04:LTS
accountsservice

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
22.07.5-2ubuntu1.6

Affected versions

0.*
0.6.55-0ubuntu14
0.6.55-3ubuntu1
0.6.55-3ubuntu2
0.6.55-3ubuntu4
0.6.55-3ubuntu5
0.6.55-3ubuntu6
22.*
22.07.5-2ubuntu1
22.07.5-2ubuntu1.3
22.07.5-2ubuntu1.4
22.07.5-2ubuntu1.5

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "22.07.5-2ubuntu1.6"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "22.07.5-2ubuntu1.6"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "22.07.5-2ubuntu1.6"
        }
    ],
    "priority_reason": "Local privilege escalation issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61897.json"
Ubuntu:24.04:LTS
accountsservice

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
23.13.9-2ubuntu6.1

Affected versions

23.*
23.13.9-2ubuntu2
23.13.9-2ubuntu4
23.13.9-2ubuntu6

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "23.13.9-2ubuntu6.1"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "23.13.9-2ubuntu6.1"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "23.13.9-2ubuntu6.1"
        }
    ],
    "priority_reason": "Local privilege escalation issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61897.json"
Ubuntu:26.04:LTS
accountsservice

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
23.13.9-8ubuntu5.2

Affected versions

23.*
23.13.9-7ubuntu1
23.13.9-8ubuntu1
23.13.9-8ubuntu2
23.13.9-8ubuntu4
23.13.9-8ubuntu5
23.13.9-8ubuntu5.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "23.13.9-8ubuntu5.2"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "23.13.9-8ubuntu5.2"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "23.13.9-8ubuntu5.2"
        }
    ],
    "priority_reason": "Local privilege escalation issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61897.json"
Ubuntu:Pro:14.04:LTS
accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.6.35-0ubuntu7.3+esm4

Affected versions

0.*
0.6.34-0ubuntu6
0.6.34-0ubuntu7
0.6.35-0ubuntu1
0.6.35-0ubuntu2
0.6.35-0ubuntu3
0.6.35-0ubuntu4
0.6.35-0ubuntu5
0.6.35-0ubuntu6
0.6.35-0ubuntu7
0.6.35-0ubuntu7.1
0.6.35-0ubuntu7.2
0.6.35-0ubuntu7.3
0.6.35-0ubuntu7.3+esm2
0.6.35-0ubuntu7.3+esm3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.35-0ubuntu7.3+esm4"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.35-0ubuntu7.3+esm4"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.35-0ubuntu7.3+esm4"
        },
        {
            "binary_name": "libpam-pin",
            "binary_version": "0.6.35-0ubuntu7.3+esm4"
        }
    ],
    "priority_reason": "Local privilege escalation issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61897.json"
Ubuntu:Pro:16.04:LTS
accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.6.40-2ubuntu11.6+esm2

Affected versions

0.*
0.6.40-2ubuntu5
0.6.40-2ubuntu6
0.6.40-2ubuntu7
0.6.40-2ubuntu8
0.6.40-2ubuntu9
0.6.40-2ubuntu10
0.6.40-2ubuntu11
0.6.40-2ubuntu11.1
0.6.40-2ubuntu11.2
0.6.40-2ubuntu11.3
0.6.40-2ubuntu11.6
0.6.40-2ubuntu11.6+esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.40-2ubuntu11.6+esm2"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.40-2ubuntu11.6+esm2"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.40-2ubuntu11.6+esm2"
        }
    ],
    "priority_reason": "Local privilege escalation issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61897.json"
Ubuntu:Pro:18.04:LTS
accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.6.45-1ubuntu1.3+esm2

Affected versions

0.*
0.6.42-0ubuntu3
0.6.42-0ubuntu4
0.6.45-1ubuntu1
0.6.45-1ubuntu1.3
0.6.45-1ubuntu1.3+esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.45-1ubuntu1.3+esm2"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.45-1ubuntu1.3+esm2"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.45-1ubuntu1.3+esm2"
        }
    ],
    "priority_reason": "Local privilege escalation issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61897.json"
Ubuntu:Pro:20.04:LTS
accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.6.55-0ubuntu12~20.04.7+esm1

Affected versions

0.*
0.6.55-0ubuntu10
0.6.55-0ubuntu11
0.6.55-0ubuntu12~20.04.1
0.6.55-0ubuntu12~20.04.2
0.6.55-0ubuntu12~20.04.4
0.6.55-0ubuntu12~20.04.5
0.6.55-0ubuntu12~20.04.6
0.6.55-0ubuntu12~20.04.7

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.55-0ubuntu12~20.04.7+esm1"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.55-0ubuntu12~20.04.7+esm1"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.55-0ubuntu12~20.04.7+esm1"
        }
    ],
    "priority_reason": "Local privilege escalation issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61897.json"