UBUNTU-CVE-2026-23631

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Source

https://ubuntu.com/security/CVE-2026-23631

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23631.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-23631

Upstream

CVE-2026-23631

Published

2026-05-05T17:17:00Z

Modified

2026-05-20T16:24:41.746471210Z

Severity

6.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Redis is an in-memory data structure store. In all versions of redis-server with Lua scripting, an authenticated attacker can exploit the master-replica synchronization mechanism to trigger a use-after-free on replicas where replica-read-only is disabled or can be disabled, which may lead to remote code execution. A workaround is to prevent users from executing Lua scripts or avoid using replicas where replica-read-only is disabled. This is patched in version 8.6.3.

References

Affected packages

Ubuntu:24.04:LTS

redis

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5:7.*

5:7.0.12-1

5:7.0.14-1

5:7.0.14-2

5:7.0.15-1

5:7.0.15-1build1

5:7.0.15-1build2

5:7.0.15-1ubuntu0.24.04.1

5:7.0.15-1ubuntu0.24.04.2

5:7.0.15-1ubuntu0.24.04.3

5:7.0.15-1ubuntu0.24.04.4

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5:7.0.15-1ubuntu0.24.04.4",
            "binary_name": "redis"
        },
        {
            "binary_version": "5:7.0.15-1ubuntu0.24.04.4",
            "binary_name": "redis-sentinel"
        },
        {
            "binary_version": "5:7.0.15-1ubuntu0.24.04.4",
            "binary_name": "redis-server"
        },
        {
            "binary_version": "5:7.0.15-1ubuntu0.24.04.4",
            "binary_name": "redis-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23631.json"

Ubuntu:25.10

redis

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5:7.*

5:7.0.15-3

5:7.0.15-3.1

5:8.*

5:8.0.2-3

5:8.0.2-3build1

5:8.0.2-3ubuntu0.25.10.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5:8.0.2-3ubuntu0.25.10.1",
            "binary_name": "redis"
        },
        {
            "binary_version": "5:8.0.2-3ubuntu0.25.10.1",
            "binary_name": "redis-sentinel"
        },
        {
            "binary_version": "5:8.0.2-3ubuntu0.25.10.1",
            "binary_name": "redis-server"
        },
        {
            "binary_version": "5:8.0.2-3ubuntu0.25.10.1",
            "binary_name": "redis-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23631.json"

Ubuntu:26.04:LTS

redis

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5:8.*

5:8.0.2-3build1

5:8.0.2-3ubuntu0.25.10.1

5:8.0.5-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5:8.0.5-1",
            "binary_name": "redis"
        },
        {
            "binary_version": "5:8.0.5-1",
            "binary_name": "redis-sentinel"
        },
        {
            "binary_version": "5:8.0.5-1",
            "binary_name": "redis-server"
        },
        {
            "binary_version": "5:8.0.5-1",
            "binary_name": "redis-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23631.json"

Ubuntu:Pro:14.04:LTS

redis

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2:2.*

2:2.6.13-1

2:2.6.16-3

2:2.8.0-1

2:2.8.2-1

2:2.8.4-2

2:2.8.4-2ubuntu0.2

2:2.8.4-2ubuntu0.2+esm1

2:2.8.4-2ubuntu0.2+esm2

2:2.8.4-2ubuntu0.2+esm3

2:2.8.4-2ubuntu0.2+esm4

2:2.8.4-2ubuntu0.2+esm5

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2:2.8.4-2ubuntu0.2+esm5",
            "binary_name": "redis-server"
        },
        {
            "binary_version": "2:2.8.4-2ubuntu0.2+esm5",
            "binary_name": "redis-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23631.json"

Ubuntu:Pro:16.04:LTS

redis

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2:3.*

2:3.0.3-3

2:3.0.5-1

2:3.0.5-2

2:3.0.5-3

2:3.0.5-4

2:3.0.6-1

2:3.0.6-1ubuntu0.2

2:3.0.6-1ubuntu0.3

2:3.0.6-1ubuntu0.4

2:3.0.6-1ubuntu0.4+esm1

2:3.0.6-1ubuntu0.4+esm2

2:3.0.6-1ubuntu0.4+esm3

2:3.0.6-1ubuntu0.4+esm4

2:3.0.6-1ubuntu0.4+esm5

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2:3.0.6-1ubuntu0.4+esm5",
            "binary_name": "redis-sentinel"
        },
        {
            "binary_version": "2:3.0.6-1ubuntu0.4+esm5",
            "binary_name": "redis-server"
        },
        {
            "binary_version": "2:3.0.6-1ubuntu0.4+esm5",
            "binary_name": "redis-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23631.json"

Ubuntu:Pro:18.04:LTS

redis

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

4:4.*

4:4.0.1-7

4:4.0.2-6

4:4.0.2-9

5:4.*

5:4.0.5-1

5:4.0.6-1

5:4.0.6-2

5:4.0.7-1

5:4.0.8-1

5:4.0.8-2

5:4.0.9-1

5:4.0.9-1ubuntu0.1

5:4.0.9-1ubuntu0.2

5:4.0.9-1ubuntu0.2+esm2

5:4.0.9-1ubuntu0.2+esm3

5:4.0.9-1ubuntu0.2+esm4

5:4.0.9-1ubuntu0.2+esm5

5:4.0.9-1ubuntu0.2+esm6

5:4.0.9-1ubuntu0.2+esm7

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5:4.0.9-1ubuntu0.2+esm7",
            "binary_name": "redis"
        },
        {
            "binary_version": "5:4.0.9-1ubuntu0.2+esm7",
            "binary_name": "redis-sentinel"
        },
        {
            "binary_version": "5:4.0.9-1ubuntu0.2+esm7",
            "binary_name": "redis-server"
        },
        {
            "binary_version": "5:4.0.9-1ubuntu0.2+esm7",
            "binary_name": "redis-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23631.json"

Ubuntu:Pro:20.04:LTS

redis

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5:5.*

5:5.0.5-2build1

5:5.0.6-1

5:5.0.7-1

5:5.0.7-2

5:5.0.7-2ubuntu0.1~esm1

5:5.0.7-2ubuntu0.1

5:5.0.7-2ubuntu0.1+esm1

5:5.0.7-2ubuntu0.1+esm2

5:5.0.7-2ubuntu0.1+esm3

5:5.0.7-2ubuntu0.1+esm4

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4",
            "binary_name": "redis"
        },
        {
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4",
            "binary_name": "redis-sentinel"
        },
        {
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4",
            "binary_name": "redis-server"
        },
        {
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4",
            "binary_name": "redis-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23631.json"

Ubuntu:Pro:22.04:LTS

redis

Package

Name: redis
Purl: pkg:deb/ubuntu/redis?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5:6.*

5:6.0.15-1

5:6.0.16-1

5:6.0.16-1build1

5:6.0.16-1ubuntu1

5:6.0.16-1ubuntu1+esm1

5:6.0.16-1ubuntu1+esm2

5:6.0.16-1ubuntu1.1

5:6.0.16-1ubuntu1.1+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5:6.0.16-1ubuntu1.1+esm1",
            "binary_name": "redis"
        },
        {
            "binary_version": "5:6.0.16-1ubuntu1.1+esm1",
            "binary_name": "redis-sentinel"
        },
        {
            "binary_version": "5:6.0.16-1ubuntu1.1+esm1",
            "binary_name": "redis-server"
        },
        {
            "binary_version": "5:6.0.16-1ubuntu1.1+esm1",
            "binary_name": "redis-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23631.json"