DEBIAN-CVE-2026-96638

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Source
https://security-tracker.debian.org/tracker/CVE-2026-96638
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-96638.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-96638
Upstream
Published
2026-10-22T09:47:29Z
Modified
2026-10-22T10:01:02Z
Summary
[none]
Details

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, BmpRleDecoder.decode() in src/PIL/BmpImagePlugin.py permits crafted RLE BMP delta escapes and absolute-mode runs to append beyond the remaining dest_length without a per-branch cap. A delta can add roughly 255 image rows in one iteration, so a kilobyte-sized file with a large but permitted width can expand the data bytearray to hundreds of megabytes or more, causing memory-exhaustion denial of 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
13.*
13.0.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-96638.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
13.*
13.0.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-96638.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
13.*
13.0.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-96638.json"