UBUNTU-CVE-2026-87822

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-87822
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87822.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-87822
Upstream
  • CVE-2026-87822
Published
2026-09-09T15:17:00Z
Modified
2026-09-16T14:03:38Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

t-digest versions 3.1 through 3.3 fail to validate centroid means during deserialization in MergingDigest.fromBytes, allowing attackers to inject NaN values that bypass validation checks. Attackers can craft malicious serialized digests containing NaN centroids that degrade sorting performance from O(n log n) to O(n squared), causing severe processing delays during merge operations.

References

Affected packages

Ubuntu:16.04:LTS
t-digest

Package

Name
t-digest
Purl
pkg:deb/ubuntu/t-digest?arch=source&distro=xenial

Affected ranges

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

Affected versions

1:3.*
1:3.0-1build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libt-digest-java",
            "binary_version":  "1:3.0-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87822.json"
Ubuntu:18.04:LTS
t-digest

Package

Name
t-digest
Purl
pkg:deb/ubuntu/t-digest?arch=source&distro=bionic

Affected ranges

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

Affected versions

1:3.*
1:3.0-1build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libt-digest-java",
            "binary_version":  "1:3.0-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87822.json"
Ubuntu:20.04:LTS
t-digest

Package

Name
t-digest
Purl
pkg:deb/ubuntu/t-digest?arch=source&distro=focal

Affected ranges

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

Affected versions

1:3.*
1:3.0-3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libt-digest-java",
            "binary_version":  "1:3.0-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87822.json"
Ubuntu:22.04:LTS
t-digest

Package

Name
t-digest
Purl
pkg:deb/ubuntu/t-digest?arch=source&distro=jammy

Affected ranges

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

Affected versions

1:3.*
1:3.0-3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libt-digest-java",
            "binary_version":  "1:3.0-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87822.json"
Ubuntu:24.04:LTS
t-digest

Package

Name
t-digest
Purl
pkg:deb/ubuntu/t-digest?arch=source&distro=noble

Affected ranges

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

Affected versions

1:3.*
1:3.0-3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libt-digest-java",
            "binary_version":  "1:3.0-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87822.json"
Ubuntu:26.04:LTS
t-digest

Package

Name
t-digest
Purl
pkg:deb/ubuntu/t-digest?arch=source&distro=resolute

Affected ranges

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

Affected versions

1:3.*
1:3.0-3
1:3.0-3build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libt-digest-java",
            "binary_version":  "1:3.0-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87822.json"