PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-61871 ImageMagick CVE debrief

ImageMagick before 7.1.2-26 and 6.9.13-51 contains a memory leak in the ICON decoder that occurs when a memory allocation fails. Processing a crafted ICON file that triggers an allocation failure leaks memory, which may lead to a denial of service. This vulnerability affects ImageMagick installations that process untrusted images, particularly in environments where ICON files are handled. Defenders and system administrators should assess exposure and prioritize verifying ImageMagick installations. The vulnerability has a CVSS score of 6.3 and is classified as MEDIUM severity. The CVE record was published on 2026-07-15T12:18:22.233Z.

Vendor
ImageMagick
Product
Unknown
CVSS
MEDIUM 6.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-15
Original CVE updated
2026-10-29
Advisory published
2026-07-15
Advisory updated
2026-10-29

Who should care

Defenders, system administrators, and developers using ImageMagick, especially in environments where untrusted images are processed, should assess exposure to potential denial-of-service attacks.

Why it matters

CVE-2026-61871 is a memory leak vulnerability in ImageMagick's ICON decoder that may lead to denial of service. Defenders should prioritize verifying ImageMagick installations, especially in environments where untrusted images are processed.

  • Denial of service through memory exhaustion
  • Potential system crashes or instability
  • Increased resource utilization

Technical summary

The vulnerability occurs in the ICON decoder of ImageMagick, causing a memory leak when a memory allocation fails. This may lead to a denial of service when processing crafted ICON files. The affected products are ImageMagick versions before 7.1.2-26 and 6.9.13-51. The vulnerability has been publicly disclosed and defenders should prioritize verifying ImageMagick installations, especially in environments where untrusted images are processed.

Defensive priority

Defenders should prioritize verifying ImageMagick installations, especially in environments where untrusted images are processed, and assess exposure to potential denial-of-service attacks.

Recommended defensive actions

  • Verify ImageMagick installations and assess exposure to potential denial-of-service attacks
  • Update ImageMagick to version 7.1.2-26 or later, or 6.9.13-51 or later
  • Monitor for and restrict processing of untrusted images

Evidence notes

The CVE record and NVD entry provide details on the memory leak vulnerability in ImageMagick's ICON decoder. The vulnerability may lead to a denial of service when processing crafted ICON files.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-61871 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-61871

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-61871 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-61871

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.