CVE-2026-112394

What it is

Pillow is a Python imaging library. Prior to 13.0.0, Pillow's P;2L and P;4L raw decoders can read past the end of an input buffer. ImagingRawDecode calculates a packed-pixel row size, while the unpackers read separately padded bit planes. A caller can supply a buffer and image dimensions whose accepted size is smaller than the unpacker's actual footprint. This can disclose up to three adjacent heap bytes in output pixels or crash the process. This issue is fixed in version 13.0.0.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

0.6% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-10-19 16:58 UTC ReservedThe CVE id was reserved by its CNA
2. 2026-10-19 21:17 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-10-26 21:01 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.6% in the next 30 days (EPSS).
• Severity: 6.3 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-10-19 21:17 UTC

Last modified

2026-10-26 21:01 UTC

Exploit probability

0.6% · EPSS, next 30 days

Weakness

CWE-126

Record status

Analyzed

Affected

• Python Pillow < 13.0.0

Attack profile CVSS 4.0 · 6.3

Attack vector

Network

Complexity

Low

Attack requirements

Present

Privileges needed

None

User interaction

None

Confidentiality

Low

Integrity

None

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-112394.md and follow it. Check whether this project is affected by CVE-2026-112394. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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