CVE-2026-56365— ImageMagick - Memory Leak in PNG Encoder via MNG Image Writing
Possible ATT&CK Techniques 1AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| 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
| # | POC Description | Source Link | Shenlong Link |
|---|
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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
- CVE-2026-62946
ImageMagick: Integer Overflow in JNX decoder causes heap buf - CVE-2026-62363
ImageMagick: Heap Buffer Over-Write in fx operation - CVE-2026-62343
ImageMagick: Heap Buffer Over-Write in morphology operation - CVE-2026-64685
ImageMagick: Heap Buffer Over-Read in BGR decoder due to mis - CVE-2026-66011
ImageMagick before 7.1.2-27 Memory Leak via Invalid CLI Opti
Same vendor: ImageMagick
- CVE-2026-62946
ImageMagick: Integer Overflow in JNX decoder causes heap buf - CVE-2026-62363
ImageMagick: Heap Buffer Over-Write in fx operation - CVE-2026-62343
ImageMagick: Heap Buffer Over-Write in morphology operation - CVE-2026-64685
ImageMagick: Heap Buffer Over-Read in BGR decoder due to mis - CVE-2026-66011
ImageMagick before 7.1.2-27 Memory Leak via Invalid CLI Opti
Same weakness: CWE-401
- CVE-2026-76235
Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memo - CVE-2026-52734
ZEBRA: Unbounded memory leak in mempool download pipeline vi - CVE-2026-73565
@hono/node-server: Unauthenticated memory-leak DoS via abort - CVE-2026-19382
Almico Speedfan MSR Index speedfan.sys KiSystemCall64 memory - CVE-2026-56818
Netty: RedisArrayAggregator max-elements failure leaves reta
V. Comments for CVE-2026-56365
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