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CVE-2026-56365— ImageMagick - Memory Leak in PNG Encoder via MNG Image Writing

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.

ImageMagick是ImageMagick团队开源的一套开源的图像处理软件。可读取、转换或写入多种格式的图片。 ImageMagick 7.1.2-19之前版本和6.9.13-44之前版本存在资源管理错误漏洞，该漏洞源于PNG编码器在写入MNG图像时存在内存泄漏，攻击者可触发编码器故障条件耗尽内存资源，导致拒绝服务。

CVSS 3.7 · Low EPSS 0.28% · P20

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 4

VendorProduct Version RangeStatus
ImageMagick ImageMagick < 7.1.2-19 affected
7.1.2-19 unaffected
< 6.9.13-44 affected
6.9.13-44 unaffected
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I. Basic Information for CVE-2026-56365

Vulnerability Information
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Vulnerability Title
ImageMagick - Memory Leak in PNG Encoder via MNG Image Writing
Source: CVE Program / CVE List V5
Vulnerability Description
ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing MNG images. Attackers can trigger the encoder failure condition to exhaust memory resources and cause denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
ImageMagick 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ImageMagick是ImageMagick团队开源的一套开源的图像处理软件。可读取、转换或写入多种格式的图片。 ImageMagick 7.1.2-19之前版本和6.9.13-44之前版本存在资源管理错误漏洞，该漏洞源于PNG编码器在写入MNG图像时存在内存泄漏，攻击者可触发编码器故障条件耗尽内存资源，导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ImageMagick ImageMagick 0 ~ 7.1.2-19 -
ImageMagick ImageMagick 0 ~ 6.9.13-44 -

II. Public POCs for CVE-2026-56365

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III. Intelligence Information for CVE-2026-56365

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Vendor Advisories for CVE-2026-56365 (2)

Same Patch Batch · ImageMagick · 2026-06-30 · 6 CVEs total

CVE-2026-56369 3.7 LOW ImageMagick - Information Disclosure via AES-CTR Nonce Reuse in PasskeyEncipherImage
CVE-2026-56361 3.3 LOW ImageMagick - Heap Buffer Overflow via Off-by-One in Morphology Processing
CVE-2026-56363 3.3 LOW ImageMagick - Division by Zero in Binomial Kernel Processing
CVE-2026-56377 3.3 LOW ImageMagick - Policy Bypass via Incorrect Path Validation
CVE-2026-56364 1.9 LOW ImageMagick - Memory Leak in LoadOpenCLDeviceBenchmark() via Malformed XML

IV. Related Vulnerabilities

Same product: ImageMagick
Same vendor: ImageMagick
Same weakness: CWE-401

V. Comments for CVE-2026-56365

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