DEBIAN-CVE-2026-55195

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Source
https://security-tracker.debian.org/tracker/CVE-2026-55195
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55195.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-55195
Upstream
Published
2026-07-08T21:16:49Z
Modified
2026-09-14T17:03:43Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption. Prior to 1.1.3, py7zr's Worker.decompress() extracted archive entries without tracking total decompressed size, allowing a crafted .7z file such as a 15.6 KB archive that expands to 100 MB to exhaust disk or memory before extraction completes. This issue is fixed in version 1.1.3.

References

Affected packages

Debian:12 / py7zr

Package

Name
py7zr
Purl
pkg:deb/debian/py7zr?arch=source&distro=bookworm

Affected ranges

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

Affected versions

0.*
0.11.3+dfsg-5
0.11.3+dfsg-6
0.11.3+dfsg-7
0.11.3+dfsg-8
0.21.0+dfsg-1
0.21.0+dfsg-2
0.21.1+dfsg-1
0.22.0+dfsg-1
1.*
1.0.0+dfsg1-1
1.0.0+dfsg1-2
1.0.0+dfsg1-3~bpo13+1
1.0.0+dfsg1-3
1.0.0+dfsg1-4
1.0.0+dfsg1-5
1.1.0+dfsg-1~exp1
1.1.2+dfsg-1~exp1
1.1.2+dfsg-1
1.1.2+dfsg-2
1.1.2+really1.1.0+dfsg-1
1.1.2-1+really1.1.0+dfsg-1
1.1.2-1+really1.1.0+dfsg-2
1.1.3+dfsg-1
1.1.3+dfsg-2
1.1.3+dfsg-3
1.1.3+dfsg-4

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55195.json"

Debian:13 / py7zr

Package

Name
py7zr
Purl
pkg:deb/debian/py7zr?arch=source&distro=trixie

Affected ranges

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

Affected versions

0.*
0.22.0+dfsg-1
1.*
1.0.0+dfsg1-1
1.0.0+dfsg1-2
1.0.0+dfsg1-3~bpo13+1
1.0.0+dfsg1-3
1.0.0+dfsg1-4
1.0.0+dfsg1-5
1.1.0+dfsg-1~exp1
1.1.2+dfsg-1~exp1
1.1.2+dfsg-1
1.1.2+dfsg-2
1.1.2+really1.1.0+dfsg-1
1.1.2-1+really1.1.0+dfsg-1
1.1.2-1+really1.1.0+dfsg-2
1.1.3+dfsg-1
1.1.3+dfsg-2
1.1.3+dfsg-3
1.1.3+dfsg-4

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55195.json"

Debian:14 / py7zr

Package

Name
py7zr
Purl
pkg:deb/debian/py7zr?arch=source&distro=forky

Affected ranges

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

Affected versions

0.*
0.22.0+dfsg-1
1.*
1.0.0+dfsg1-1
1.0.0+dfsg1-2
1.0.0+dfsg1-3~bpo13+1
1.0.0+dfsg1-3
1.0.0+dfsg1-4
1.0.0+dfsg1-5
1.1.0+dfsg-1~exp1
1.1.2+dfsg-1~exp1
1.1.2+dfsg-1
1.1.2+dfsg-2
1.1.2+really1.1.0+dfsg-1
1.1.2-1+really1.1.0+dfsg-1
1.1.2-1+really1.1.0+dfsg-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55195.json"