How severe is CVE-2023-50447?

CVE-2023-50447 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-50447 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-50447?

CVE-2023-50447 primarily affects Python Pillow. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-50447?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-50447 have an EU (EUVD) identifier?

Yes. CVE-2023-50447 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0230.

When was CVE-2023-50447 published?

CVE-2023-50447 was published on 2024-01-19 and last updated on 2026-06-17.

CVE-2023-50447

CVE-2023-50447 is a high-severity vulnerability in Python Pillow with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0230
Weakness: CWE-94
Affected product: Python Pillow
Published: 2024-01-19
Last modified: 2026-06-17

Description

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).

Frequently asked questions

What is CVE-2023-50447?: 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).
How severe is CVE-2023-50447?: CVE-2023-50447 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-50447 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-50447?: CVE-2023-50447 primarily affects Python Pillow. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-50447?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-50447 have an EU (EUVD) identifier?: Yes. CVE-2023-50447 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0230.
When was CVE-2023-50447 published?: CVE-2023-50447 was published on 2024-01-19 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

More vulnerabilities in Python Pillow

CVE-2014-3007 — Critical (CVSS 10.0): Python Image Library (PIL) 1.1.7 and earlier and Pillow 2.3 might allow remote attackers to execute arbitrary commands…
CVE-2022-30595 — Critical (CVSS 9.8): libImaging/TgaRleDecode.c in Pillow 9.1.0 has a heap buffer overflow in the processing of invalid TGA image files.
CVE-2022-22817 — Critical (CVSS 9.8): PIL.ImageMath.eval in Pillow before 9.0.0 allows evaluation of arbitrary expressions, such as ones that use the Python…
CVE-2021-34552 — Critical (CVSS 9.8): Pillow through 8.2.0 and PIL (aka Python Imaging Library) through 1.1.7 allow an attacker to pass controlled parameters…
CVE-2021-25289 — Critical (CVSS 9.8): An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr…
CVE-2020-5312 — Critical (CVSS 9.8): libImaging/PcxDecode.c in Pillow before 6.2.2 has a PCX P mode buffer overflow.

All CVEs affecting Python Pillow →

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CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

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