Answer in brief
CVE-2025-71329 records a High severity (CVSS 7.5) vulnerability in image-size: JXL and HEIF parsers allow denial of service through infinite loops. The current sources do not mark it as known exploited. The current feed maps image-size (npm), image-size (npm), image-size (npm), image-size (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps image-size (npm), image-size (npm), image-size (npm), image-size (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| image-sizenpm | >=1.2.0,<=2.0.2 | 2.0.3 |
| image-sizenpm | <=2.0.2 | Not reported |
| image-sizenpm | >=0 | Not reported |
| image-sizenpm | >=1.2.0 <2.0.3 | 2.0.3 |
Published upstream
Jun 10, 2026
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Sep 24, 2026
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Aug 7, 2026
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.
Quoted source text, attributed separately from HOL analysis.