DEBIAN-CVE-2026-112399

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Source
https://security-tracker.debian.org/tracker/CVE-2026-112399
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112399.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-112399
Upstream
Published
2026-10-20T11:47:33Z
Modified
2026-10-20T12:00:41Z
Summary
[none]
Details

Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow can allocate an APNG disposal background at the full canvas size before applying the decompression-bomb check. A crafted APNG with a small first frame, a very large declared canvas, and background disposal or first-frame OP_PREVIOUS reaches PngImageFile._seek while Image.open() positions frame zero. The full-canvas allocation occurs inside Image.open() without requiring pixel loading or frame iteration. This can exhaust memory and deny service. This issue is fixed in version 13.0.0.

References

Affected packages

Debian:12 / pillow

Package

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

Affected ranges

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

Affected versions

9.*
9.4.0-1.1
9.4.0-1.1+deb12u1
9.5.0-1
10.*
10.0.0-1
10.1.0-1
10.2.0-1
10.3.0-1
10.3.0-2
10.4.0-1
10.4.0-1.1
11.*
11.1.0-1
11.1.0-2
11.1.0-3
11.1.0-4
11.1.0-5
11.2.1-1
11.3.0-1
12.*
12.0.0-1
12.1.0-1
12.1.1-1
12.1.1-2
12.2.0-1
12.3.0-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112399.json"

Debian:13 / pillow

Package

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

Affected ranges

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

Affected versions

11.*
11.1.0-5
11.1.0-5+deb13u1
11.1.0-5+deb13u2
11.1.0-5+deb13u3
11.1.0-5+deb13u4
11.2.1-1
11.3.0-1
12.*
12.0.0-1
12.1.0-1
12.1.1-1
12.1.1-2
12.2.0-1
12.3.0-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112399.json"

Debian:14 / pillow

Package

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

Affected ranges

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

Affected versions

11.*
11.1.0-5
11.2.1-1
11.3.0-1
12.*
12.0.0-1
12.1.0-1
12.1.1-1
12.1.1-2
12.2.0-1
12.3.0-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112399.json"