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CVE-2025-71329

image-size 2.0.2 Denial of Service via Infinite Loop in JXL/HEIF Parser

Published: Jun 10, 2026Updated: Jun 10, 2026 Sources: CVE List NVD
NVD MITRE
7.5CVSS
HIGH

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High

Weaknesses

CWE-835

Affected Products

image-size
image-size

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

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

Timeline

Published
Jun 10, 2026
Last Updated
Jun 10, 2026

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