CVE-2026-25535
Prior to 4.2.0, user control of the first argument of the `addImage` method results in denial of service.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.72% probability · 52th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-770
- Affected
- parall/jspdf
- Source
- security-advisories@github.com
References
- https://github.com/ZeroXJacks/CVEs/blob/main/2026/CVE-2026-25535.mdExploit, Third Party Advisory
- https://github.com/parallax/jsPDF/commit/2e5e156e284d92c7d134bce97e6418756941d5e6Patch
- https://github.com/parallax/jsPDF/releases/tag/v4.2.0Release Notes
- https://github.com/parallax/jsPDF/security/advisories/GHSA-67pg-wm7f-q7fjVendor Advisory
- https://access.redhat.com/errata/RHSA-2026:7110
- https://access.redhat.com/errata/RHSA-2026:7128
- https://access.redhat.com/security/cve/CVE-2026-25535
- https://bugzilla.redhat.com/show_bug.cgi?id=2440992
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25535.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.