Medium severity · published Mar 18, 2026
CVE-2026-31898
jsPDF has a PDF Object Injection via FreeText color
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
jsPDF is a library to generate PDFs in JavaScript. Prior to version 4.2.1, user control of arguments of the `createAnnotation` method allows users to inject arbitrary PDF objects, such as JavaScript actions. If given the possibility to pass unsanitized input to the following method, a user can inject arbitrary PDF objects, such as JavaScript actions, which might trigger when the PDF is opened or interacted with the `createAnnotation`: `color` parameter. The vulnerability has been fixed in jsPDF@4.2.1. As a workaround, sanitize user input before passing it to the vulnerable API members.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JS
jsPDF · parallax
< 4.2.1 · source: vendor, NVD
RH
Red Hat Advanced Cluster Security 4.8 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Advanced Cluster Security 4.9 · Red Hat
All versions, or not specified · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-31898
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-31898
Patch
https://github.com/parallax/jsPDF/blob/b1607a9391d4cd65ea7ade25998aea8345ae1be3/src/modules/annotations.js#L193-L208
Patch
https://github.com/parallax/jsPDF/commit/4155c4819d5eca284168e51e0e1e81126b4f14b8
Release Notes
https://github.com/parallax/jsPDF/releases/tag/v4.2.1
Mitigation
https://github.com/parallax/jsPDF/security/advisories/GHSA-7x6v-j9x4-qf24
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:7110
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:7128
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