---
title: "CVE-2023-50447: Arbitrary Code Execution in Pillow"
url: https://erroneo.us/security/cve/CVE-2023-50447/
description: "CVE-2023-50447 (Pillow (PyPI)): Pillow through 10.1.0 allows PIL.ImageMath.eval Arbitrary Code Execution via the environment parameter, a different…"
type: vulnerability-record
section: "Security Digest"
date_published: 2024-01-19
date_modified: 2024-11-18
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-50447"
kev: false
cvss: 9.3
epss: 0.01703
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-50447: Arbitrary Code Execution in Pillow

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 1.7% , percentile 77: FIRST’s model estimates a 1.7% chance of exploitation activity in the next 30 days, higher than 77% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes Pillow (PyPI) < 10.2.0, fixed in 10.2.0 . Check your lockfile, including transitive dependencies.

## What it is

Pillow through 10.1.0 allows PIL.ImageMath.eval Arbitrary Code Execution via the environment parameter, a different vulnerability than CVE-2022-22817 (which was about the expression parameter).

## Affected packages

- PyPI `Pillow` < 10.2.0 → fixed: 10.2.0

## Affected products (CVE record)

- n/a n/a: see advisory

## Severity

- CISA-ADP CVSS 3.1: 8.1 `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 4.0: 9.3 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 1.70% probability of exploitation activity in the next 30 days; percentile 77.

## Sources

- [GitHub Advisory GHSA-3f63-hfp8-52jq](https://github.com/advisories/GHSA-3f63-hfp8-52jq)
- [CVE.org record CVE-2023-50447](https://www.cve.org/CVERecord?id=CVE-2023-50447)
- [NVD entry CVE-2023-50447](https://nvd.nist.gov/vuln/detail/CVE-2023-50447)
- [github.com](https://github.com/python-pillow/Pillow/releases)
- [devhub.checkmarx.com](https://devhub.checkmarx.com/cve-details/CVE-2023-50447/)
- [[oss-security] 20240120 Pillow 10.2.0 released, fixes CVE-2023-50447](http://www.openwall.com/lists/oss-security/2024/01/20/1)
- [[debian-lts-announce] 20240129 [SECURITY] [DLA 3724-1] pillow security update](https://lists.debian.org/debian-lts-announce/2024/01/msg00019.html)
- [duartecsantos.github.io](https://duartecsantos.github.io/2024-01-02-CVE-2023-50447/)
- [github.com](https://github.com/python-pillow/Pillow/commit/45c726fd4daa63236a8f3653530f297dc87b160a)
- [pillow.readthedocs.io](https://pillow.readthedocs.io/en/stable/releasenotes/10.2.0.html#security)
- [duartecsantos.github.io](https://duartecsantos.github.io/2023-01-02-CVE-2023-50447)

---
Source page: https://erroneo.us/security/cve/CVE-2023-50447/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt