UBUNTU-CVE-2026-13608

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Source
https://ubuntu.com/security/CVE-2026-13608
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13608.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-13608
Upstream
Published
2026-09-06T18:17:00Z
Modified
2026-09-16T11:31:13Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw in the libcurl SASL negotiation for LDAP authentication allows an incomplete handshake sequence to be misinterpreted as a successful cryptographic verification. An attacker executing a Man-in-the-Middle (MITM) attack can inject a premature or shortcut response that bypasses complete peer validation.

References

Affected packages

Ubuntu:24.04:LTS / curl

Package

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

Affected ranges

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

Affected versions

8.*
8.2.1-1ubuntu3
8.2.1-1ubuntu3.1
8.4.0-2ubuntu1
8.5.0-2ubuntu1
8.5.0-2ubuntu2
8.5.0-2ubuntu8
8.5.0-2ubuntu9
8.5.0-2ubuntu10
8.5.0-2ubuntu10.1
8.5.0-2ubuntu10.2
8.5.0-2ubuntu10.3
8.5.0-2ubuntu10.4
8.5.0-2ubuntu10.5
8.5.0-2ubuntu10.6
8.5.0-2ubuntu10.7
8.5.0-2ubuntu10.8
8.5.0-2ubuntu10.9
8.5.0-2ubuntu10.10
8.5.0-2ubuntu10.11
8.5.0-2ubuntu10.12
8.5.0-2ubuntu10.13

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "curl",
            "binary_version":  "8.5.0-2ubuntu10.13"
        },
        {
            "binary_name":  "libcurl3t64-gnutls",
            "binary_version":  "8.5.0-2ubuntu10.13"
        },
        {
            "binary_name":  "libcurl4t64",
            "binary_version":  "8.5.0-2ubuntu10.13"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13608.json"

Ubuntu:26.04:LTS / curl

Package

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

Affected ranges

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

Affected versions

8.*
8.14.1-2ubuntu1
8.17.0-1ubuntu1
8.18.0-1ubuntu1
8.18.0-1ubuntu2
8.18.0-1ubuntu2.1
8.18.0-1ubuntu2.2
8.18.0-1ubuntu2.3
8.18.0-1ubuntu2.4
8.18.0-1ubuntu2.5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "curl",
            "binary_version":  "8.18.0-1ubuntu2.5"
        },
        {
            "binary_name":  "libcurl3t64-gnutls",
            "binary_version":  "8.18.0-1ubuntu2.5"
        },
        {
            "binary_name":  "libcurl4t64",
            "binary_version":  "8.18.0-1ubuntu2.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13608.json"