CVE-2026-55595: ImageMagick: Infinite Loop in connected-components when providing invalid arguments

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• imagemagick imagemagickbefore 6.9.13-51
• imagemagick imagemagick7.0.0-0 and later · before 7.1.2-26

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

• ImageMagick ImageMagick

  • >= 7.0.1-0, < 7.1.2-26, < 6.9.13-51affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2016-3714The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT coders in ImageMagick before 6.9.3-10 and 7.x beforKEV
  92Now
• CVE-2016-3718The (1) HTTP and (2) FTP coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allow remote attackers to conduct server-side request KEV
  75This week
• CVE-2016-3715The EPHEMERAL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote attackers to delete arbitrary files via a crafted imKEV
  75This week

Published before and after this one in the same product

• ← EarlierCVE-2026-55577Jul 1, 2026 · ImageMagick: Heap Buffer Overflow in ImageMagick MVG decoder
  23Monitor
• ← EarlierCVE-2026-55594Jul 1, 2026 · ImageMagick: Stack Overflow in MVG decoder due to missing depth check.
  21Monitor
• Later →CVE-2026-55597Jul 1, 2026 · ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect handling of arguments
  22Monitor

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1function expand(node) {2  return node.children.map(expand);3}

1const MAX_DEPTH = 32;2function expand(node, depth = 0) {3  if (depth > MAX_DEPTH) throw new Error("too deep");4  return node.children.map((c) => expand(c, depth + 1));5}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.