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TI-2026-40741 Aliases CVE-2026-56378GHSA-jmqv-2mx7-544h

ImageMagick - Heap Out-of-Bounds Read in PCD Decoder

Priority LOW 28CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00389 33rd percentileScored 2026-11-07
Fix Partial ImageMagick (ImageMagick): 7.1.2-15, 6.9.13-40Red Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ImageMagickImageMagick7.0.0 to before 7.1.2-157.1.2-15Patch availableCNA
ImageMagickImageMagickbefore 6.9.13-406.9.13-40Patch availableCNA
  • ImageMagick VendorImageMagick Affected 7.0.0 to before 7.1.2-15 Fixed in 7.1.2-15 Patch available CNA
  • ImageMagick VendorImageMagick Affected before 6.9.13-40 Fixed in 6.9.13-40 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*6.9.0-0 to before 6.9.13-40; 7.1.2-0 to before 7.1.2-15VulnerableImageMagick
  • cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* Versions 6.9.0-0 to before 6.9.13-40; 7.1.2-0 to before 7.1.2-15 Vulnerable ·ImageMagick

Remediation

  • Fix · CNA ImageMagick (ImageMagick) Fixed in 7.1.2-15
  • Fix · CNA ImageMagick (ImageMagick) Fixed in 6.9.13-40

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    ImageMagick 6.9.13-40, 7.1.2-15

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-40730 ImageMagick - Heap Out-of-Bounds Read in PSB RLE DecodingPriority LOW 28
    Show all 2 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-56378
  2. 2026-10-03 Alias added: GHSA-jmqv-2mx7-544h
  3. 2026-10-29 Affected versions changed · CNA

References

Advisory 1

  • TI-2016-03144 The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT… KEVCVSS 3.1HIGH 8.4
  • TI-2023-16996 Improper input validation in ImageMagick CVSS 3.1CRITICAL 9.8
  • TI-2016-03148 The (1) HTTP and (2) FTP coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1… KEVCVSS 3.1MEDIUM 5.5
  • TI-2016-03145 The EPHEMERAL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote… KEVCVSS 3.1MEDIUM 5.5
  • TI-2025-35690 ImageMagick BlobStream Forward-Seek Under-Allocation CVSS 3.1CRITICAL 9.8
  • TI-2025-33094 ImageMagick has Stack Buffer Overflow in image.c CVSS 3.1CRITICAL 9.8
See all 888 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences