CVE-2026-56377
LowCVSS 3.3Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
A vulnerability in ImageMagick before version 7.1.2-24 allows attackers to bypass security policies and create or truncate files that should be blocked. The flaw is due to incorrect policy path validation, enabling file writes outside allowed boundaries.
Risk Assessment
Remote attackers can exploit this vulnerability in sandboxed conversion services to write arbitrary files on the server, potentially leading to data integrity compromise, privilege escalation, or further system attacks.
Recommendation
Immediately upgrade ImageMagick to version 7.1.2-24 or later. Additionally, review and tighten security policy configurations (policy.xml) to mitigate the risk.
Other vulnerabilities in ImageMagick
See all- CVE-2017-17880High
In ImageMagick 7.0.7-16 Q16 x86_64, there is a stack-based buffer over-read in WriteWEBPImage in coders/webp.c, related to a WEBP_DECODER_ABI_VERSION check.
- CVE-2017-17879High
In ImageMagick 7.0.7-16 Q16 x86_64, there is a heap-based buffer over-read in ReadOneMNGImage in coders/png.c, related to length calculation and caused by an off-by-one error.
- CVE-2017-16546High
The ReadWPGImage function in ImageMagick 7.0.7-9 does not properly validate the colormap index in a WPG palette, which may lead to denial of service or other unspecified impacts via a malformed WPG file.
- CVE-2017-15281High
The ReadPSDImage function in coders/psd.c in ImageMagick 7.0.7-6 has a vulnerability that allows remote attackers to cause application crashes or potentially other unspecified impacts via a crafted file.
- CVE-2017-15033High
ImageMagick version 7.0.7-2 contains a memory leak in ReadYUVImage in coders/yuv.c.
- CVE-2017-14739High
The AcquireResampleFilterThreadSet function in ImageMagick 7.0.7-4 mishandles failed memory allocation, which can lead to denial of service via NULL Pointer Dereference in DistortImage.
- CVE-2017-14682High
GetNextToken in MagickCore/token.c in ImageMagick 7.0.6 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted SVG document.
- CVE-2017-14137High
The ReadWEBPImage function in coders/webp.c in ImageMagick 7.0.6-5 has an issue with excessive memory allocation that depends only on a length field in a header.
- CVE-2017-13146High
In ImageMagick before version 6.9.8-5 and 7.x before version 7.0.5-6, there is a memory leak in the ReadMATImage function in coders/mat.c.
- CVE-2017-13143High
In ImageMagick before 6.9.7-6 and 7.x before 7.0.4-6, the ReadMATImage function in coders/mat.c uses uninitialized data, which might allow remote attackers to obtain sensitive information from process memory.
Original NVD description (English source)
ImageMagick before 7.1.2-24 contains an incorrect policy check that allows attackers to create or truncate files disallowed by security policies. Remote attackers can bypass path policy restrictions in sandboxed conversion services to write arbitrary files outside intended boundaries.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS