Race condition in jspdf - CVE-2026-24040
Published: April 27, 2026
Vulnerability identifier: #VU127965
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-24040
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Jelle_S
Affected software:
jspdf
jspdf
Detailed vulnerability description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to a race condition in the addJS method when generating PDFs concurrently. A remote attacker can trigger simultaneous PDF generation requests to disclose sensitive information.
This can cause a PDF generated for one user to contain JavaScript content and embedded sensitive data intended for another user.
How to mitigate CVE-2026-24040
Install security update from vendor's website.