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CVE-2026-109279— ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Heap Buffer Overflow via Concurrent Security Policy Access

Quick assessment

Affected
ImageMagick ImageMagick
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 ImageMagick 6.9.13-57 之前的版本以及 7.x 中 7.1.2-32 之前的版本中，当访问安全策略时，缺乏适当的同步机制。因此，多个线程同时对策略进行读取和写入会触发竞争条件，导致堆缓冲区溢出。攻击者若能诱导并发访问安全策略，可导致应用程序崩溃，从而引发拒绝服务（Denial of Service, DoS）攻击。

CVSS 2.5 · Low

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 4

VendorProduct Version RangeStatus
ImageMagick ImageMagick 7.0.0-0< 7.1.2-32 affected
7.1.2-32 unaffected
< 6.9.13-57 affected
6.9.13-57 unaffected
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I. Basic Information for CVE-2026-109279

Vulnerability Information
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Vulnerability Title
ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Heap Buffer Overflow via Concurrent Security Policy Access
Source: CVE Program / CVE List V5
Vulnerability Description
ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 lacks proper synchronization when the security policy is accessed, so simultaneous reads and writes of the policy by multiple threads trigger a race condition that causes a heap buffer over-write. An attacker able to induce concurrent security policy access can crash the application, causing a denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ImageMagick ImageMagick 7.0.0-0 ~ 7.1.2-32 -
ImageMagick ImageMagick 0 ~ 6.9.13-57 -

II. Public POCs for CVE-2026-109279

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-109279

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Patches & Fixes for CVE-2026-109279 (2)

Vendor Advisories for CVE-2026-109279 (2)

Same Patch Batch · ImageMagick · 2026-10-12 · 26 CVEs total

CVE-2026-109266 5.3 MEDIUM ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Code Injection via CIP Encoder
CVE-2026-109259 5.3 MEDIUM ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Information Disclosure in TGA Decoder
CVE-2026-109273 5.3 MEDIUM ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Information Disclosure in PostScript
CVE-2026-109276 5.3 MEDIUM ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Temporary File Leak in JNG Decoder
CVE-2026-109262 5.3 MEDIUM ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Memory Leak in SVG Encoder
CVE-2026-109265 5.3 MEDIUM ImageMagick 7.1.1-7 before 7.1.2-32 Heap Buffer Over-Read via XMP Profile
CVE-2026-109267 5.3 MEDIUM ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Stack Overflow in MSL Decoder
CVE-2026-109269 5.3 MEDIUM ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Information Disclosure via JPEG Decod
CVE-2026-109275 4.8 MEDIUM ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Code Injection via MVG Decoder
CVE-2026-109281 4.4 MEDIUM ImageMagick 7.1.0-21 before 7.1.2-32 Heap Buffer Over-Read via -fx Option
CVE-2026-109272 3.7 LOW ImageMagick 7.1.1-31 before 7.1.2-32 Null Pointer Dereference in PostScript Decoder
CVE-2026-109268 3.7 LOW ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Use After Free in PDF Writer via JPEG
CVE-2026-109261 3.7 LOW ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Memory Leak in GIF Encoder
CVE-2026-109278 3.7 LOW ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Memory Leak in Wavelet-Denoise Operat
CVE-2026-109260 3.7 LOW ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Memory Leak in PNG Encoder
CVE-2026-109263 3.7 LOW ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Memory Leak in YUV Encoder
CVE-2026-109264 3.7 LOW ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Stack Overflow in MVG Decoder
CVE-2026-109271 3.7 LOW ImageMagick 7.1.2-30 before 7.1.2-32 Use After Free in WBINFO Decoder
CVE-2026-105081 3.6 LOW ImageMagick before 7.1.2-33 Policy Bypass via Symlink in IsRightsAuthorizedByName
CVE-2026-109270 3.3 LOW ImageMagick before 7.1.2-32 Memory Leak via -process Option

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: ImageMagick
Same vendor: ImageMagick
Same weakness: CWE-362

V. Comments for CVE-2026-109279

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