UBUNTU-CVE-2026-48101

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Source
https://ubuntu.com/security/CVE-2026-48101
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-48101
Upstream
  • CVE-2026-48101
Published
2026-06-05T16:16:00Z
Modified
2026-06-12T09:04:20.205779925Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an An uninitialized memory disclosure vulnerability in the UEFI capsule (.scap) parser in 7-Zip. The OpenCapsule function allocates a heap buffer of attacker-declared CapsuleImageSize (up to 1 GiB) without zero-initialization, then reads the file contents into it with ReadStream_FALSE whose return value is silently discarded. If the file is truncated, the unread tail of the buffer retains uninitialized heap memory, which is then exposed as extracted file content via GetStream. Version 26.0.1 fixes the issue.

References

Affected packages

Ubuntu:14.04:LTS
p7zip

Package

Name
p7zip
Purl
pkg:deb/ubuntu/p7zip?arch=source&distro=trusty

Affected ranges

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

Affected versions

9.*
9.20.1~dfsg.1-4
9.20.1~dfsg.1-4+deb7u1build0.14.04.1
9.20.1~dfsg.1-4+deb7u2build0.14.04.1
9.20.1~dfsg.1-4+deb7u3build0.14.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "p7zip",
            "binary_version": "9.20.1~dfsg.1-4+deb7u3build0.14.04.1"
        },
        {
            "binary_name": "p7zip-full",
            "binary_version": "9.20.1~dfsg.1-4+deb7u3build0.14.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json"
Ubuntu:16.04:LTS
p7zip

Package

Name
p7zip
Purl
pkg:deb/ubuntu/p7zip?arch=source&distro=xenial

Affected ranges

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

Affected versions

9.*
9.20.1~dfsg.1-4.2
9.20.1~dfsg.1-4.2ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "p7zip",
            "binary_version": "9.20.1~dfsg.1-4.2ubuntu0.1"
        },
        {
            "binary_name": "p7zip-full",
            "binary_version": "9.20.1~dfsg.1-4.2ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json"
Ubuntu:18.04:LTS
p7zip

Package

Name
p7zip
Purl
pkg:deb/ubuntu/p7zip?arch=source&distro=bionic

Affected ranges

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

Affected versions

16.*
16.02+dfsg-4
16.02+dfsg-5
16.02+dfsg-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "p7zip",
            "binary_version": "16.02+dfsg-6"
        },
        {
            "binary_name": "p7zip-full",
            "binary_version": "16.02+dfsg-6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json"
Ubuntu:20.04:LTS
p7zip

Package

Name
p7zip
Purl
pkg:deb/ubuntu/p7zip?arch=source&distro=focal

Affected ranges

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

Affected versions

16.*
16.02+dfsg-7
16.02+dfsg-7build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "p7zip",
            "binary_version": "16.02+dfsg-7build1"
        },
        {
            "binary_name": "p7zip-full",
            "binary_version": "16.02+dfsg-7build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json"
Ubuntu:22.04:LTS
p7zip

Package

Name
p7zip
Purl
pkg:deb/ubuntu/p7zip?arch=source&distro=jammy

Affected ranges

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

Affected versions

16.*
16.02+dfsg-8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "p7zip",
            "binary_version": "16.02+dfsg-8"
        },
        {
            "binary_name": "p7zip-full",
            "binary_version": "16.02+dfsg-8"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json"
Ubuntu:25.10
7zip

Package

Name
7zip
Purl
pkg:deb/ubuntu/7zip?arch=source&distro=questing

Affected ranges

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

Affected versions

24.*
24.09+dfsg-7
24.09+dfsg-8
25.*
25.00+dfsg-1
25.01+dfsg-1
25.01+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "7zip",
            "binary_version": "25.01+dfsg-2"
        },
        {
            "binary_name": "7zip-standalone",
            "binary_version": "25.01+dfsg-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json"
Ubuntu:26.04:LTS
7zip

Package

Name
7zip
Purl
pkg:deb/ubuntu/7zip?arch=source&distro=resolute

Affected ranges

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

Affected versions

25.*
25.01+dfsg-2
25.01+dfsg-3
25.01+dfsg-4
25.01+dfsg-5
26.*
26.00+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "7zip",
            "binary_version": "26.00+dfsg-1"
        },
        {
            "binary_name": "7zip-standalone",
            "binary_version": "26.00+dfsg-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json"
Ubuntu:Pro:22.04:LTS
7zip

Package

Name
7zip
Purl
pkg:deb/ubuntu/7zip?arch=source&distro=esm-apps%2Fjammy

Affected ranges

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

Affected versions

21.*
21.03~beta+dfsg-6
21.04~beta+dfsg-1
21.06+dfsg-1
21.07+dfsg-1
21.07+dfsg-2
21.07+dfsg-3
21.07+dfsg-4
21.07+dfsg-4ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "7zip",
            "binary_version": "21.07+dfsg-4ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json"
Ubuntu:Pro:24.04:LTS
7zip

Package

Name
7zip
Purl
pkg:deb/ubuntu/7zip?arch=source&distro=esm-apps%2Fnoble

Affected ranges

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

Affected versions

23.*
23.01+dfsg-3
23.01+dfsg-7
23.01+dfsg-8
23.01+dfsg-11
23.01+dfsg-11ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "7zip",
            "binary_version": "23.01+dfsg-11ubuntu0.1~esm1"
        },
        {
            "binary_name": "7zip-standalone",
            "binary_version": "23.01+dfsg-11ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48101.json"