UBUNTU-CVE-2026-50012

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Source

https://ubuntu.com/security/CVE-2026-50012

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50012.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-50012

Upstream

CVE-2026-50012

Downstream

USN-8435-1

Related

USN-8435-1

Published

2026-06-12T00:00:00Z

Modified

2026-06-16T21:45:14.540470084Z

Severity

Ubuntu - medium

Summary

[none]

Details

Heap-based Buffer Overflow attack against cache digests

References

Affected packages

Ubuntu:22.04:LTS

squid

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.9-0ubuntu0.22.04.7

Affected versions

4.*

4.13-10ubuntu5

5.*

5.2-1ubuntu1

5.2-1ubuntu3

5.2-1ubuntu4

5.2-1ubuntu4.1

5.2-1ubuntu4.2

5.2-1ubuntu4.3

5.7-0ubuntu0.22.04.1

5.7-0ubuntu0.22.04.2

5.7-0ubuntu0.22.04.3

5.7-0ubuntu0.22.04.4

5.9-0ubuntu0.22.04.1

5.9-0ubuntu0.22.04.2

5.9-0ubuntu0.22.04.3

5.9-0ubuntu0.22.04.4

5.9-0ubuntu0.22.04.5

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5.9-0ubuntu0.22.04.7",
            "binary_name": "squid"
        },
        {
            "binary_version": "5.9-0ubuntu0.22.04.7",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "5.9-0ubuntu0.22.04.7",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "5.9-0ubuntu0.22.04.7",
            "binary_name": "squid-openssl"
        },
        {
            "binary_version": "5.9-0ubuntu0.22.04.7",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "5.9-0ubuntu0.22.04.7",
            "binary_name": "squidclient"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50012.json"

Ubuntu:24.04:LTS

squid

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

6.14-0ubuntu0.24.04.4

Affected versions

6.*

6.1-2ubuntu1

6.1-2ubuntu2

6.5-1ubuntu1

6.5-1ubuntu2

6.5-1ubuntu3

6.6-1ubuntu4

6.6-1ubuntu5

6.6-1ubuntu5.1

6.10-0ubuntu0.24.04.1

6.13-0ubuntu0.24.04.1

6.13-0ubuntu0.24.04.2

6.13-0ubuntu0.24.04.3

6.14-0ubuntu0.24.04.1

6.14-0ubuntu0.24.04.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "6.14-0ubuntu0.24.04.4",
            "binary_name": "squid"
        },
        {
            "binary_version": "6.14-0ubuntu0.24.04.4",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "6.14-0ubuntu0.24.04.4",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "6.14-0ubuntu0.24.04.4",
            "binary_name": "squid-openssl"
        },
        {
            "binary_version": "6.14-0ubuntu0.24.04.4",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "6.14-0ubuntu0.24.04.4",
            "binary_name": "squidclient"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50012.json"

Ubuntu:25.10

squid

Package

Name: squid
Purl: pkg:deb/ubuntu/squid?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

6.14-0ubuntu0.25.10.4

Affected versions

6.*

6.13-1ubuntu1

6.13-1ubuntu2

6.13-1ubuntu3

6.13-1ubuntu4

6.13-1ubuntu4.1

6.14-0ubuntu0.25.10.1

6.14-0ubuntu0.25.10.2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "6.14-0ubuntu0.25.10.4",
            "binary_name": "squid"
        },
        {
            "binary_version": "6.14-0ubuntu0.25.10.4",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "6.14-0ubuntu0.25.10.4",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "6.14-0ubuntu0.25.10.4",
            "binary_name": "squid-openssl"
        },
        {
            "binary_version": "6.14-0ubuntu0.25.10.4",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "6.14-0ubuntu0.25.10.4",
            "binary_name": "squidclient"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50012.json"

Ubuntu:26.04:LTS

squid

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

7.2-2ubuntu2.2

Affected versions

6.*

6.13-1ubuntu4

6.13-1ubuntu5

7.*

7.2-2ubuntu1

7.2-2ubuntu2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "7.2-2ubuntu2.2",
            "binary_name": "squid"
        },
        {
            "binary_version": "7.2-2ubuntu2.2",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "7.2-2ubuntu2.2",
            "binary_name": "squid-openssl"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50012.json"

Ubuntu:Pro:16.04:LTS

squid3

Package

Name: squid3
Purl: pkg:deb/ubuntu/squid3?arch=source&distro=esm-infra%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.3.8-1ubuntu16

3.3.8-1ubuntu17

3.5.12-1ubuntu6

3.5.12-1ubuntu7

3.5.12-1ubuntu7.1

3.5.12-1ubuntu7.2

3.5.12-1ubuntu7.3

3.5.12-1ubuntu7.4

3.5.12-1ubuntu7.5

3.5.12-1ubuntu7.6

3.5.12-1ubuntu7.7

3.5.12-1ubuntu7.8

3.5.12-1ubuntu7.9

3.5.12-1ubuntu7.10

3.5.12-1ubuntu7.11

3.5.12-1ubuntu7.12

3.5.12-1ubuntu7.13

3.5.12-1ubuntu7.14

3.5.12-1ubuntu7.15

3.5.12-1ubuntu7.16

3.5.12-1ubuntu7.16+esm1

3.5.12-1ubuntu7.16+esm2

3.5.12-1ubuntu7.16+esm3

3.5.12-1ubuntu7.16+esm4

3.5.12-1ubuntu7.16+esm5

3.5.12-1ubuntu7.16+esm6

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid3"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squidclient"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50012.json"

Ubuntu:Pro:18.04:LTS

squid3

Package

Name: squid3
Purl: pkg:deb/ubuntu/squid3?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.5.23-5ubuntu1

3.5.23-5ubuntu2

3.5.27-1ubuntu1

3.5.27-1ubuntu1.1

3.5.27-1ubuntu1.2

3.5.27-1ubuntu1.3

3.5.27-1ubuntu1.4

3.5.27-1ubuntu1.5

3.5.27-1ubuntu1.6

3.5.27-1ubuntu1.7

3.5.27-1ubuntu1.8

3.5.27-1ubuntu1.9

3.5.27-1ubuntu1.10

3.5.27-1ubuntu1.11

3.5.27-1ubuntu1.12

3.5.27-1ubuntu1.13

3.5.27-1ubuntu1.14

3.5.27-1ubuntu1.14+esm1

3.5.27-1ubuntu1.14+esm2

3.5.27-1ubuntu1.14+esm3

3.5.27-1ubuntu1.14+esm4

3.5.27-1ubuntu1.14+esm5

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "3.5.27-1ubuntu1.14+esm5",
            "binary_name": "squid"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.14+esm5",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.14+esm5",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.14+esm5",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.14+esm5",
            "binary_name": "squid3"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.14+esm5",
            "binary_name": "squidclient"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50012.json"

Ubuntu:Pro:20.04:LTS

squid

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.8-1ubuntu2

4.8-1ubuntu3

4.9-2ubuntu1

4.9-2ubuntu2

4.9-2ubuntu3

4.9-2ubuntu4

4.10-1ubuntu1

4.10-1ubuntu1.1

4.10-1ubuntu1.2

4.10-1ubuntu1.3

4.10-1ubuntu1.4

4.10-1ubuntu1.5

4.10-1ubuntu1.6

4.10-1ubuntu1.7

4.10-1ubuntu1.8

4.10-1ubuntu1.9

4.10-1ubuntu1.10

4.10-1ubuntu1.11

4.10-1ubuntu1.12

4.10-1ubuntu1.13

4.10-1ubuntu1.13+esm1

4.10-1ubuntu1.13+esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "4.10-1ubuntu1.13+esm2",
            "binary_name": "squid"
        },
        {
            "binary_version": "4.10-1ubuntu1.13+esm2",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "4.10-1ubuntu1.13+esm2",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "4.10-1ubuntu1.13+esm2",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "4.10-1ubuntu1.13+esm2",
            "binary_name": "squidclient"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50012.json"