python-pillow Pillow up to 12.2.x APIs Image.paste/Image.crop/Image.alpha_composite Coordinate out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k1.33

Summaryinfo

A vulnerability classified as critical has been found in python-pillow Pillow up to 12.2.x. This issue affects the function Image.paste/Image.crop/Image.alpha_composite of the component APIs. This manipulation of the argument Coordinate causes out-of-bounds write. The identification of this vulnerability is CVE-2026-59199. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in python-pillow Pillow up to 12.2.x. It has been declared as critical. Affected by this vulnerability is the function Image.paste/Image.crop/Image.alpha_composite of the component APIs. The manipulation of the argument coordinate with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Pillow is a Python imaging library. Prior to 12.3.0, Pillow public image coordinate APIs can trigger a native heap out-of-bounds write when given coordinates near the signed 32-bit integer limits in Image.paste(), Image.crop(), or Image.alpha_composite(). This issue is fixed in version 12.3.0.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-59199 since 07/02/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Upgrading to version 12.3.0 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Upgrade: Pillow 12.3.0

Timelineinfo

07/02/2026 CVE reserved
07/14/2026 +12 days Advisory disclosed
07/14/2026 +0 days VulDB entry created
07/14/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-59199 (🔒)
GCVE (CVE): GCVE-0-2026-59199
GCVE (VulDB): GCVE-100-378349

Entryinfo

Created: 07/14/2026 18:32
Changes: 07/14/2026 18:32 (56)
Complete: 🔍
Cache ID: 216::103

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