DEBIAN-CVE-2026-48092

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-48092
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48092.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-48092
Upstream
  • CVE-2026-48092
Published
2026-06-05T15:16:53Z
Modified
2026-09-14T17:03:16Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H CVSS Calculator
Summary
[none]
Details

7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass the fragment bounds check, causing memcpy to read heap memory preceding the cache buffer into the extracted file. The vulnerability is exploitable only on 32-bit builds of 7-Zip where size_t is 32 bits, allowing the addition offsetInBlock + blockSize to wrap modulo 2³². On 64-bit builds the addition is promoted to 64 bits and the check correctly rejects the input. Version 26.01 patches 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-2026-48092.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-2026-48092.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-2026-48092.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-2026-48092.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-2026-48092.json"