CVE-2026-56361
highpriority · track · 28EPSS 0.001 · 2 %ileDEEURUUSEPSS · scored 2026-10-27
ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trigger heap buffer overflow by providing incorrect morphology parameters causing single pixel memory access violations.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 1.1–7.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (36)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1126ImageMagick: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2026-04-14csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in ImageMagick ausnutzen, um einen Denial of Service Angriff durchzuführen.
- GHSA-q8h3-jv9v-57qxImageMagick has has an off-by-one origin validation in allows out-of-bounds read in morphology processing2026-04-14ghsa · osvUS
An incorrect morphology would allow an out of bounds read of a single pixel. ``` ==1200284==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x5100000002d0 at pc 0x59e28e60c27a bp 0x7fff047fd8e0 sp 0x7fff047fd8d0 READ of size 4 at 0x5100000002d0 thread T0 ```
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q8h3-jv9v-57qxcnnvd
- https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-via-off-by-one-in-morphology-processingcnnvd
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q8h3-jv9v-57qxenisa_euvd
- https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-via-off-by-one-in-morphology-processingenisa_euvd
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q8h3-jv9v-57qxVendor Advisorynvd
- https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-via-off-by-one-in-morphology-processingThird Party Advisorynvd
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