UBUNTU-CVE-2026-86345

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Source
https://ubuntu.com/security/CVE-2026-86345
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86345.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-86345
Upstream
  • CVE-2026-86345
Published
2026-10-02T00:00:00Z
Modified
2026-10-02T22:30:29Z
Severity
  • 9.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in 389-ds-base. The server does not discard plaintext bytes already buffered from a client connection when negotiating StartTLS, allowing an on-path attacker to inject a crafted LDAP message that is processed after the TLS upgrade and whose response is delivered to the client in place of the client's own pending operation's response, due to messageID collision. This can cause a client application to treat a failed authentication (bind) attempt as successful.

References

Affected packages

Ubuntu:22.04:LTS
389-ds-base

Package

Name
389-ds-base
Purl
pkg:deb/ubuntu/389-ds-base?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.4.4.11-2build1
1.4.4.11-2build2
1.4.4.17-1
2.*
2.0.11-2
2.0.14-1
2.0.15-1
2.0.15-1ubuntu2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "389-ds",
            "binary_version":  "2.0.15-1ubuntu2"
        },
        {
            "binary_name":  "389-ds-base",
            "binary_version":  "2.0.15-1ubuntu2"
        },
        {
            "binary_name":  "389-ds-base-libs",
            "binary_version":  "2.0.15-1ubuntu2"
        },
        {
            "binary_name":  "cockpit-389-ds",
            "binary_version":  "2.0.15-1ubuntu2"
        },
        {
            "binary_name":  "python3-lib389",
            "binary_version":  "2.0.15-1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86345.json"
Ubuntu:24.04:LTS
389-ds-base

Package

Name
389-ds-base
Purl
pkg:deb/ubuntu/389-ds-base?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*
2.3.4+dfsg1-1
2.4.4+dfsg1-1ubuntu1
2.4.4+dfsg1-1ubuntu4
2.4.4+dfsg1-3
2.4.5+dfsg1-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "389-ds",
            "binary_version":  "2.4.5+dfsg1-1"
        },
        {
            "binary_name":  "389-ds-base",
            "binary_version":  "2.4.5+dfsg1-1"
        },
        {
            "binary_name":  "389-ds-base-libs",
            "binary_version":  "2.4.5+dfsg1-1"
        },
        {
            "binary_name":  "cockpit-389-ds",
            "binary_version":  "2.4.5+dfsg1-1"
        },
        {
            "binary_name":  "python3-lib389",
            "binary_version":  "2.4.5+dfsg1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86345.json"
Ubuntu:26.04:LTS
389-ds-base

Package

Name
389-ds-base
Purl
pkg:deb/ubuntu/389-ds-base?arch=source&distro=resolute

Affected ranges

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

Affected versions

3.*
3.1.2+dfsg1-1
3.1.2+vendor1-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "389-ds",
            "binary_version":  "3.1.2+vendor1-2"
        },
        {
            "binary_name":  "389-ds-base",
            "binary_version":  "3.1.2+vendor1-2"
        },
        {
            "binary_name":  "389-ds-base-libs",
            "binary_version":  "3.1.2+vendor1-2"
        },
        {
            "binary_name":  "cockpit-389-ds",
            "binary_version":  "3.1.2+vendor1-2"
        },
        {
            "binary_name":  "python3-lib389",
            "binary_version":  "3.1.2+vendor1-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86345.json"
Ubuntu:Pro:16.04:LTS
389-ds-base

Package

Name
389-ds-base
Purl
pkg:deb/ubuntu/389-ds-base?arch=source&distro=esm-apps%2Fxenial

Affected ranges

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

Affected versions

1.*
1.3.3.12-1build1
1.3.3.13-1
1.3.4.5-2
1.3.4.8-1
1.3.4.8-3
1.3.4.8-3ubuntu1
1.3.4.8-4
1.3.4.9-1
1.3.4.9-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "389-ds",
            "binary_version":  "1.3.4.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name":  "389-ds-base",
            "binary_version":  "1.3.4.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name":  "389-ds-base-libs",
            "binary_version":  "1.3.4.9-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86345.json"
Ubuntu:Pro:18.04:LTS
389-ds-base

Package

Name
389-ds-base
Purl
pkg:deb/ubuntu/389-ds-base?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

1.*
1.3.7.5-1
1.3.7.5-1build1
1.3.7.5-1build2
1.3.7.9-1
1.3.7.10-1
1.3.7.10-1ubuntu1
1.3.7.10-1ubuntu1+esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "389-ds",
            "binary_version":  "1.3.7.10-1ubuntu1+esm1"
        },
        {
            "binary_name":  "389-ds-base",
            "binary_version":  "1.3.7.10-1ubuntu1+esm1"
        },
        {
            "binary_name":  "389-ds-base-libs",
            "binary_version":  "1.3.7.10-1ubuntu1+esm1"
        },
        {
            "binary_name":  "python3-dirsrvtests",
            "binary_version":  "1.3.7.10-1ubuntu1+esm1"
        },
        {
            "binary_name":  "python3-lib389",
            "binary_version":  "1.3.7.10-1ubuntu1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86345.json"
Ubuntu:Pro:20.04:LTS
389-ds-base

Package

Name
389-ds-base
Purl
pkg:deb/ubuntu/389-ds-base?arch=source&distro=esm-apps%2Ffocal

Affected ranges

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

Affected versions

1.*
1.4.1.6-4
1.4.1.6-4build1
1.4.2.4-1
1.4.2.4-1build1
1.4.3.2-1
1.4.3.2-1build1
1.4.3.6-2
1.4.3.6-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "389-ds",
            "binary_version":  "1.4.3.6-2ubuntu0.1~esm1"
        },
        {
            "binary_name":  "389-ds-base",
            "binary_version":  "1.4.3.6-2ubuntu0.1~esm1"
        },
        {
            "binary_name":  "389-ds-base-libs",
            "binary_version":  "1.4.3.6-2ubuntu0.1~esm1"
        },
        {
            "binary_name":  "cockpit-389-ds",
            "binary_version":  "1.4.3.6-2ubuntu0.1~esm1"
        },
        {
            "binary_name":  "python3-lib389",
            "binary_version":  "1.4.3.6-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86345.json"