image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted image buffer with a zero-valued size field in a recognized box-type. Attackers can trigger an infinite loop in the JXL or HEIF image parsers by providing a crafted image containing a box with a size of zero, causing the offset to never advance and permanently hanging the application.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Image-size
  • Image-size
Image Sizes Project
  • Image Sizes

Configuration 1 [-]

cpe:2.3:a:image-size:image-size:*:*:*:*:*:node.js:*:*

No data.

References
Link Providers
https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities cve-icon cve-icon
https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439 cve-icon cve-icon
https://www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parser cve-icon cve-icon
History

Mon, 15 Jun 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Image-size
Image-size image-size
CPEs cpe:2.3:a:image-size:image-size:*:*:*:*:*:node.js:*:*
Vendors & Products Image-size
Image-size image-size

Wed, 10 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 10 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
References

Wed, 10 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Description image-size 1.1.0 before 1.2.1 and 2.0.0 before 2.0.2 contain a denial of service vulnerability in the findBox function when processing specially crafted images with zero-sized boxes. Remote attackers can cause application hang by supplying malicious JXL, HEIF, or JP2 image files with box size zero, triggering infinite loops during image validation. image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted image buffer with a zero-valued size field in a recognized box-type. Attackers can trigger an infinite loop in the JXL or HEIF image parsers by providing a crafted image containing a box with a size of zero, causing the offset to never advance and permanently hanging the application.
Title image-size < 1.2.1, 2.0.2 - Denial of Service via Infinite Loop in findBox Function image-size 2.0.2 Denial of Service via Infinite Loop in JXL/HEIF Parser
References

Wed, 10 Jun 2026 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Image Sizes Project
Image Sizes Project image Sizes
Vendors & Products Image Sizes Project
Image Sizes Project image Sizes

Tue, 09 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
Description image-size 1.1.0 before 1.2.1 and 2.0.0 before 2.0.2 contain a denial of service vulnerability in the findBox function when processing specially crafted images with zero-sized boxes. Remote attackers can cause application hang by supplying malicious JXL, HEIF, or JP2 image files with box size zero, triggering infinite loops during image validation.
Title image-size < 1.2.1, 2.0.2 - Denial of Service via Infinite Loop in findBox Function
Weaknesses CWE-835
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-06-09T19:57:16.125Z

Updated: 2026-06-10T16:32:56.781Z

Reserved: 2026-06-08T20:44:31.209Z

Link: CVE-2025-71319

cve-icon Vulnrichment

Updated: 2026-06-10T15:40:04.803Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-09T21:17:03.153

Modified: 2026-06-15T17:52:04.080

Link: CVE-2025-71319

cve-icon Redhat

No data.