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CVE-2026-61858— ImageMagick before 7.1.2-26 Policy Bypass via APNG encoder

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之前版本存在后置链接漏洞，该漏洞源于APNG编码器和外部代理中缺少验证检查，可能导致策略绕过，攻击者通过APNG编码过程绕过配置的策略限制，将文件写入禁止的路径。

CVSS 3.3 · Low EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

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-2026-61858

Vulnerability Information
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Vulnerability Title
ImageMagick before 7.1.2-26 Policy Bypass via APNG encoder
Source: CVE Program / CVE List V5
Vulnerability Description
ImageMagick before 7.1.2-26 contains a policy bypass vulnerability in the APNG encoder and external delegates due to missing validation checks. Attackers can write files to disallowed paths by bypassing configured policy restrictions through the APNG encoding process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
ImageMagick 后置链接漏洞
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之前版本存在后置链接漏洞，该漏洞源于APNG编码器和外部代理中缺少验证检查，可能导致策略绕过，攻击者通过APNG编码过程绕过配置的策略限制，将文件写入禁止的路径。
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-2026-61858

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III. Intelligence Information for CVE-2026-61858

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Vendor Advisories for CVE-2026-61858 (2)

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

CVE-2026-61861 3.7 LOW ImageMagick before 7.1.2-26 Use-After-Free in FormatMagickCaption
CVE-2026-61857 3.7 LOW ImageMagick before 7.1.2-26 Heap Use-After-Free via XMP
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-59