DEBIAN-CVE-2026-48101

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Source
https://security-tracker.debian.org/tracker/CVE-2026-48101
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48101.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-48101
Upstream
  • CVE-2026-48101
Published
2026-06-05T16:16:41Z
Modified
2026-09-14T17:03:41Z
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
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

Debian:12 / 7zip

Package

Name
7zip
Purl
pkg:deb/debian/7zip?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
22.01+really26.01+dfsg-0+deb12u1

Affected versions

22.*
22.01+dfsg-8
22.01+dfsg-8+deb12u1
22.01+dfsg-9
22.01+dfsg-10~exp1
22.01+really25.01+dfsg-0+deb12u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48101.json"

Debian:13 / 7zip

Package

Name
7zip
Purl
pkg:deb/debian/7zip?arch=source&distro=trixie

Affected ranges

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

Affected versions

24.*
24.09+dfsg-8
25.*
25.00+dfsg-1
25.01+dfsg-1~deb13u1~bpo12+1
25.01+dfsg-1~deb13u1
25.01+dfsg-1~deb13u2
25.01+dfsg-1
25.01+dfsg-2
25.01+dfsg-3
25.01+dfsg-4
25.01+dfsg-5
26.*
26.00+dfsg-1
26.00+dfsg-2
26.00+dfsg-3
26.00+dfsg-4
26.00+dfsg-5
26.00+dfsg1-1
26.00+dfsg1-2
26.00+dfsg1-3
26.01+dfsg-1
26.01+dfsg-2
26.01+dfsg-3
26.02+dfsg-1
26.02+dfsg-2
26.02+dfsg-3
26.03+dfsg-1
26.03+dfsg-2
26.03+dfsg-3

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48101.json"

Debian:14 / 7zip

Package

Name
7zip
Purl
pkg:deb/debian/7zip?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
26.01+dfsg-1

Affected versions

24.*
24.09+dfsg-8
25.*
25.00+dfsg-1
25.01+dfsg-1~deb13u1~bpo12+1
25.01+dfsg-1~deb13u1
25.01+dfsg-1~deb13u2
25.01+dfsg-1
25.01+dfsg-2
25.01+dfsg-3
25.01+dfsg-4
25.01+dfsg-5
26.*
26.00+dfsg-1
26.00+dfsg-2
26.00+dfsg-3
26.00+dfsg-4
26.00+dfsg-5
26.00+dfsg1-1
26.00+dfsg1-2
26.00+dfsg1-3

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48101.json"

Debian:12 / p7zip

Package

Name
p7zip
Purl
pkg:deb/debian/p7zip?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
16.02+really26.01+dfsg-0+deb12u1

Affected versions

16.*
16.02+dfsg-8
16.02+really25.01+dfsg-0+deb12u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48101.json"

Debian:13 / p7zip

Package

Name
p7zip
Purl
pkg:deb/debian/p7zip?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
16.02+transitional.1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48101.json"