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Vulnerability record · CVE-2016-9190 · published 4 November 2016

CVE-2016-9190: Python pillow improper access control vulnerability

Python · Pillow

Pillow before 3.3.2 allows context-dependent attackers to execute arbitrary code by using the "crafted image file" approach, related to an "Insecure Sign Extension" issue affecting the ImagingNew in Storage.c component.

7.8 CVSS 3.0 High EPSS 1.9% · top 21.2% CWE-284 · Improper access control
7.8CVSS 3.0 base score, v2 6.8
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

Pillow before 3.3.2 allows context-dependent attackers to execute arbitrary code by using the "crafted image file" approach, related to an "Insecure Sign Extension" issue affecting the ImagingNew in Storage.c component.

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://pillow.readthedocs.io/en/3.4.x/releasenotes/3.3.2.html Vendor Advisory
http://www.debian.org/security/2016/dsa-3710 Third Party Advisory
http://www.securityfocus.com/bid/94234 Third Party AdvisoryVDB Entry
https://github.com/python-pillow/Pillow/issues/2105 Issue TrackingPatchThird Party Advisory
https://github.com/python-pillow/Pillow/pull/2146/commits/5d8a0be45aad78c5a22c8d099118ee26ef8144af Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/201612-52
http://pillow.readthedocs.io/en/3.4.x/releasenotes/3.3.2.html Vendor Advisory
http://www.debian.org/security/2016/dsa-3710 Third Party Advisory
http://www.securityfocus.com/bid/94234 Third Party AdvisoryVDB Entry
https://github.com/python-pillow/Pillow/issues/2105 Issue TrackingPatchThird Party Advisory
https://github.com/python-pillow/Pillow/pull/2146/commits/5d8a0be45aad78c5a22c8d099118ee26ef8144af Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/201612-52

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Source: NIST National Vulnerability Database (record CVE-2016-9190), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.