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Pillow CVE-2026-54058

| EUVDEUVD-2026-43735 HIGH
Out-of-bounds Read (CWE-125)
2026-07-14 GitHub_M GHSA-62p4-gmf7-7g93
Buffer Overflow Python Information Disclosure Pillow Python Pillow
8.3
CVSS 4.0 · Vendor: GitHub_M
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Vulnerability Assessment

Weakness
CWE
CWE-125
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, read limits
MITRE ATT&CK

1 technique across 1 tactic: Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 14, 2026

Out-of-bounds memory disclosure in Python Pillow before 12.3.0 lets an attacker who supplies a crafted McIdas AREA image file read adjacent process memory or crash the host application. When such a file is opened from a filename, header words control the raw-codec mmap row stride; setting it below the true row width causes later pixel operations (tobytes, getpixel, convert, save) to read past the mapped region. No public exploit is identified at time of analysis and it is not in CISA KEV, but the upstream fix, PR, and a regression test are public, making the flaw well documented.

Affected VersionsENISA

Pillow < 12.3.0

Affected Packages

pypi pillow fix: 12.3.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in pypi

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

Vendor (GitHub_M) PRIMARY 8.3 HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
SUSE 6.7 MEDIUM
AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Red Hat 9.1 HIGH

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
None
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
Patch available
Jul 14, 2026 - 18:20 EUVD
CVE Published
Jul 14, 2026 - 16:27 cve.org
HIGH 8.3

DescriptionCVE.org

Pillow is a Python imaging library. Prior to 12.3.0, when Pillow loads an uncompressed McIdas AREA image from a filename through the mmap raw codec path, attacker-controlled header words can set a row stride smaller than the natural row width, causing pixel access such as Image.tobytes(), getpixel, convert, or save to read beyond the mapped region and disclose adjacent process memory or fault. This issue is fixed in version 12.3.0.

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 6,879 pypi packages depend on pillow (1,431 direct, 5,517 indirect)

Ecosystem-wide dependent count for version 12.3.0.

Articles & Coverage 1

News 14 New Python Vulnerabilities - 14 High Severity, 1 With POC Jul 15, 2026

Executive ViewAI

Why It Matters

Python's Pillow image library contains a vulnerability (CVSS 8.3) enabling service disruption and sensitive data exposure through specially crafted image files. The risk affects any organization with image processing in their technology stack-from user upload handling to automated content pipelines. With no security patch currently available from the vendor, immediate mitigation steps are critical to prevent exploitation.

Recommended Action

Within 24 hours, identify all systems running Python Pillow and determine which process untrusted image inputs; prioritize customer-facing applications and external data integration points. Within 7 days, implement immediate mitigations: restrict or block acceptance of McIdas AREA image format, enforce strict file-type validation at system entry points, and isolate image processing in sandboxed environments with minimal system permissions. Within 30 days, monitor for Pillow version 12.3.0 or later release, conduct testing in a staging environment, and schedule deployment to all affected production systems; document any interim workarounds and establish removal timelines post-patch.

Business Impact: High
Compensating Controls

Restrict or disable McIdas AREA format image acceptance; implement strict file-type validation and content inspection; isolate image processing in sandboxed environments with least-privilege access; disable image processing features if not required for operations; monitor for anomalous file upload patterns. No vendor-released patch identified at time of analysis.

Threat Intelligence Overview

EPSS Score
0.4%
Top 69% exploitable
Threat Intel
1
1 source
Exploit
POC
Public exploit code exists
Data Quality
8 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment GHSA Vendor GitHub VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 0.4%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
Poc
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

62
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +42
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

More in Pillow

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CVE-2022-30595 CRITICAL POC
9.8 May 25

libImaging/TgaRleDecode.c in Pillow 9.1.0 has a heap buffer overflow in the processing of invalid TGA image files. Rated
CVE-2026-59204 HIGH POC
8.7 Jul 14

Denial of service in Python Pillow (versions 8.2.0 through 12.2.0) allows remote attackers to exhaust memory during JPEG
CVE-2026-59197 HIGH POC
8.2 Jul 14

Heap out-of-bounds write in Python Pillow prior to 12.3.0 lets an attacker who controls the rank-filter size parameter c
CVE-2026-59200 HIGH POC
7.5 Jul 14

Uncontrolled memory consumption in Python Pillow (PIL) versions 5.1.0 through 12.2.x allows a remote attacker to cause d
CVE-2021-23437 HIGH POC
7.5 Sep 03

The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb

CVE-2025-48379 HIGH POC
7.1 Jul 01

Pillow is a Python imaging library. In versions 11.2.0 to before 11.3.0, there is a heap buffer overflow when writing a

CVE-2016-4009 CRITICAL
9.8 Apr 13

Integer overflow in the ImagingResampleHorizontal function in libImaging/Resample.c in Pillow before 3.1.1 allows remote
CVE-2014-3007 CRITICAL
10.0 Apr 27

Python Image Library (PIL) 1.1.7 and earlier and Pillow 2.3 might allow remote attackers to execute arbitrary commands v
CVE-2026-96639 CRITICAL
9.8 Oct 21

Pillow versions 11.0.0 through 12.x (fixed in 13.0.0) can reuse a stale native ImagingCore buffer when a multi-frame ima
CVE-2021-34552 CRITICAL
9.8 Jul 13

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
9.8 Mar 19

An issue was discovered in Pillow before 8.1.1. Rated critical severity (CVSS 9.8), this vulnerability is remotely explo
CVE-2020-5312 CRITICAL
9.8 Jan 03

libImaging/PcxDecode.c in Pillow before 6.2.2 has a PCX P mode buffer overflow. Rated critical severity (CVSS 9.8), this

Same weakness CWE-125 – Out-of-bounds Read

View all
CVE-2014-0160 HIGH POC
7.5
CVE-2016-5198 HIGH POC
8.8
CVE-2025-5777 CRITICAL POC
9.3
CVE-2016-1646 HIGH POC
8.8
CVE-2017-5030 HIGH POC
8.8
CVE-2016-4523 HIGH
7.5
CVE-2024-48456 HIGH POC
7.5
CVE-2024-48457 HIGH POC
7.5

Same technique Buffer Overflow

View all
CVE-2017-7269 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2020-0796 CRITICAL POC
10.0
CVE-2019-11043 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8

Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Module for Package Hub 15 SP7 Fixed
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Affected

References

Advisories & patches
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-54058 ADVISORY https://vuldb.com/vuln/378380 ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:3084/ REF https://github.com/python-pillow/Pillow/commit/6a8de891fb00968e5ea79bfa84368ed90b3cfc1d REF https://github.com/python-pillow/Pillow/pull/9719 REF https://github.com/python-pillow/Pillow/releases/tag/12.3.0 REF https://github.com/python-pillow/Pillow/security/advisories/GHSA-62p4-gmf7-7g93

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