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CVE-2026-61861— ImageMagick before 7.1.2-26 Use-After-Free in FormatMagickCaption

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 7.1.2-26之前版本和6.9.13-51之前版本存在资源管理错误漏洞，该漏洞源于FormatMagickCaption方法在内存分配失败时存在释放后重用问题，攻击者可触发内存分配失败，导致悬垂指针引用已释放内存，可能导致拒绝服务或代码执行。

CVSS 3.7 · Low EPSS 0.32% · P25

Affected Version Matrix 4

VendorProduct Version RangeStatus
ImageMagick ImageMagick < 7.1.2-26 affected
7.1.2-26 unaffected
< 6.9.13-51 affected
6.9.13-51 unaffected
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I. Basic Information for CVE-2026-61861

Vulnerability Information
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Vulnerability Title
ImageMagick before 7.1.2-26 Use-After-Free in FormatMagickCaption
Source: CVE Program / CVE List V5
Vulnerability Description
ImageMagick before 7.1.2-26 contains a use-after-free vulnerability in the FormatMagickCaption method when memory allocation fails. Attackers can trigger memory allocation failures to cause a dangling pointer to reference freed memory, potentially enabling denial of service or code execution.
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
释放后使用
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 7.1.2-26之前版本和6.9.13-51之前版本存在资源管理错误漏洞，该漏洞源于FormatMagickCaption方法在内存分配失败时存在释放后重用问题，攻击者可触发内存分配失败，导致悬垂指针引用已释放内存，可能导致拒绝服务或代码执行。
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 ~ 7.1.2-26 -
ImageMagick ImageMagick 0 ~ 6.9.13-51 -

II. Public POCs for CVE-2026-61861

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III. Intelligence Information for CVE-2026-61861

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Vendor Advisories for CVE-2026-61861 (1)

Other References for CVE-2026-61861 (1)

Same Patch Batch · ImageMagick · 2026-07-11 · 6 CVEs total

CVE-2026-61857 3.7 LOW ImageMagick before 7.1.2-26 Heap Use-After-Free via XMP
CVE-2026-61858 3.3 LOW ImageMagick before 7.1.2-26 Policy Bypass via APNG encoder
CVE-2026-61465 3.3 LOW ImageMagick before 7.1.2-26 Memory Allocation Policy Bypass
CVE-2026-56372 3.3 LOW ImageMagick - Heap Buffer Overflow Read via Unrecognized Magnify Method
CVE-2026-61870 2.9 LOW ImageMagick before 7.1.2-26 Memory Leak via VIFF Encoder

IV. Related Vulnerabilities

Same product: ImageMagick
Same vendor: ImageMagick
Same weakness: CWE-416

V. Comments for CVE-2026-61861

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