What’s Vulnerable › Vulnerabilities

CVE-2025-71319: image-size 2.0.2 Denial of Service via Infinite Loop in JXL/HEIF Parser

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-06-09 · updated 2026-07-24
• Weakness: CWE-835

Description

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.

Affected products

• image-size: from 1.1.0 through 1.2.1; from 2.0.0 through 2.0.2
• RedHat Discovery: 2.0
• Red Hat Enterprise Linux: 8.0
• RedHat Gatekeeper: 3.0
• RedHat Trusted Artifact Signer: from 1.4 before 1.4.2 — fixed in 1.4.2

How to fix

Upgrade to a fixed version: RedHat Trusted Artifact Signer 1.4.2. Check the vendor advisory for mitigations.

References

• https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities
• https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439
• https://www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parser
• https://access.redhat.com/errata/RHSA-2026:33313
• https://access.redhat.com/errata/RHSA-2026:37272
• https://access.redhat.com/security/cve/CVE-2025-71319
• https://bugzilla.redhat.com/show_bug.cgi?id=2487296
• https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-71319.json

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