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CVE-2026-25535 – jsPDF Affected by Client-Side/Server-Side Denial of Service via Malicious GIF Dimensions

Posted on February 19, 2026
CVE ID : CVE-2026-25535

Published : Feb. 19, 2026, 3:16 p.m. | 46 minutes ago

Description : jsPDF is a library to generate PDFs in JavaScript. Prior to 4.2.0, user control of the first argument of the `addImage` method results in denial of service. If given the possibility to pass unsanitized image data or URLs to the `addImage` method, a user can provide a harmful GIF file that results in out of memory errors and denial of service. Harmful GIF files have large width and/or height entries in their headers, which lead to excessive memory allocation. Other affected methods are: `html`. The vulnerability has been fixed in jsPDF 4.2.0. As a workaround, sanitize image data or URLs before passing it to the addImage method or one of the other affected methods.

Severity: 8.7 | HIGH

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