USN-8383-1

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Source
https://ubuntu.com/security/notices/USN-8383-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8383-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8383-1
Upstream
Related
Published
2026-06-04T13:15:22Z
Modified
2026-06-05T11:29:17.397846203Z
Summary
tomcat6, tomcat7 vulnerabilities
Details

It was discovered that Tomcat incorrectly handled digest authentication. A remote attacker could possibly use this issue to bypass authentication restrictions. (CVE-2026-43512)

It was discovered that Tomcat incorrectly handled case sensitivity in LockOutRealm. A remote attacker could possibly use this issue to bypass account lockout protections and obtain sensitive information. (CVE-2026-43513)

It was discovered that Tomcat incorrectly handled authorization when multiple method constraints defined the same HTTP method. A remote attacker could possibly use this issue to bypass authorization restrictions. (CVE-2026-43515)

References

Affected packages

Ubuntu:Pro:14.04:LTS / tomcat6

Package

Name
tomcat6
Purl
pkg:deb/ubuntu/tomcat6?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.39-1ubuntu0.1+esm3

Affected versions

6.*
6.0.37-1
6.0.39-1
6.0.39-1ubuntu0.1
6.0.39-1ubuntu0.1+esm1
6.0.39-1ubuntu0.1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libservlet2.4-java",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
        },
        {
            "binary_version": "6.0.39-1ubuntu0.1+esm3",
            "binary_name": "libservlet2.5-java"
        },
        {
            "binary_version": "6.0.39-1ubuntu0.1+esm3",
            "binary_name": "libtomcat6-java"
        },
        {
            "binary_version": "6.0.39-1ubuntu0.1+esm3",
            "binary_name": "tomcat6"
        },
        {
            "binary_version": "6.0.39-1ubuntu0.1+esm3",
            "binary_name": "tomcat6-admin"
        },
        {
            "binary_version": "6.0.39-1ubuntu0.1+esm3",
            "binary_name": "tomcat6-common"
        },
        {
            "binary_version": "6.0.39-1ubuntu0.1+esm3",
            "binary_name": "tomcat6-docs"
        },
        {
            "binary_version": "6.0.39-1ubuntu0.1+esm3",
            "binary_name": "tomcat6-examples"
        },
        {
            "binary_version": "6.0.39-1ubuntu0.1+esm3",
            "binary_name": "tomcat6-extras"
        },
        {
            "binary_version": "6.0.39-1ubuntu0.1+esm3",
            "binary_name": "tomcat6-user"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-43512"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-43513"
        },
        {
            "id": "CVE-2026-43515",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8383-1.json"

Ubuntu:Pro:14.04:LTS / tomcat7

Package

Name
tomcat7
Purl
pkg:deb/ubuntu/tomcat7?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.0.52-1ubuntu0.16+esm2

Affected versions

7.*
7.0.42-1
7.0.47-1
7.0.50-1
7.0.52-1
7.0.52-1ubuntu0.1
7.0.52-1ubuntu0.3
7.0.52-1ubuntu0.6
7.0.52-1ubuntu0.7
7.0.52-1ubuntu0.8
7.0.52-1ubuntu0.9
7.0.52-1ubuntu0.10
7.0.52-1ubuntu0.11
7.0.52-1ubuntu0.13
7.0.52-1ubuntu0.14
7.0.52-1ubuntu0.15
7.0.52-1ubuntu0.16
7.0.52-1ubuntu0.16+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm2",
            "binary_name": "libservlet3.0-java"
        },
        {
            "binary_name": "libtomcat7-java",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
        },
        {
            "binary_name": "tomcat7",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
        },
        {
            "binary_name": "tomcat7-admin",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
        },
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm2",
            "binary_name": "tomcat7-common"
        },
        {
            "binary_name": "tomcat7-docs",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
        },
        {
            "binary_name": "tomcat7-examples",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
        },
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm2",
            "binary_name": "tomcat7-user"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-43512"
        },
        {
            "id": "CVE-2026-43513",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-43515",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8383-1.json"

Ubuntu:Pro:16.04:LTS / tomcat7

Package

Name
tomcat7
Purl
pkg:deb/ubuntu/tomcat7?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.0.68-1ubuntu0.4+esm4

Affected versions

7.*
7.0.64-1
7.0.68-1
7.0.68-1ubuntu0.1
7.0.68-1ubuntu0.3
7.0.68-1ubuntu0.4
7.0.68-1ubuntu0.4+esm1
7.0.68-1ubuntu0.4+esm2
7.0.68-1ubuntu0.4+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm4",
            "binary_name": "libservlet3.0-java"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm4",
            "binary_name": "libtomcat7-java"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm4",
            "binary_name": "tomcat7"
        },
        {
            "binary_name": "tomcat7-admin",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm4",
            "binary_name": "tomcat7-common"
        },
        {
            "binary_name": "tomcat7-docs",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm4",
            "binary_name": "tomcat7-examples"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm4",
            "binary_name": "tomcat7-user"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-43512"
        },
        {
            "id": "CVE-2026-43513",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-43515"
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8383-1.json"