Use After Free Affecting org.webjars.npm:sharp package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGWEBJARSNPM-20552493
- published7 Oct 2026
- disclosed23 Sept 2026
- creditRafael B. Dias
Introduced: 23 Sep 2026
NewCVE-2026-96889 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
org.webjars.npm:sharp is a High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images
Affected versions of this package are vulnerable to Use After Free in entity_insert() and the entity map held on XmlState, which is shared between the outer parse and a recursive XInclude, so inserting an entity whose name already exists replaces the first entry and its Drop implementation calls xmlFreeNode() while the outer xmlCtxtParseEntity() is still using that 144 byte xmlEntity. An attacker can corrupt process memory by supplying an SVG document whose xi:include pulls in another document redefining an entity that is already active. This requires the application to parse attacker supplied SVG with XInclude processing reached, and the entity names must collide across the outer document and the included one.