jsPDF has HTML Injection in New Window paths

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-31938
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-18 04:17:23 UTC
Updated2026-07-20 12:18:28 UTC
DescriptionjsPDF is a library to generate PDFs in JavaScript. Prior to version 4.2.1, user control of the `options` argument of the `output` function allows attackers to inject arbitrary HTML (such as scripts) into the browser context the created PDF is opened in. The vulnerability can be exploited in the following scenario: the attacker provides values for the output options, for example via a web interface. These values are then passed unsanitized (automatically or semi-automatically) to the attack victim. The victim creates and opens a PDF with the attack vector using one of the vulnerable method overloads inside their browser. The attacker can thus inject scripts that run in the victims browser context and can extract or modify secrets from this context. The vulnerability has been fixed in [email protected]. As a workaround, sanitize user input before passing it to the output method.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.002640000 probability, percentile 0.180260000 (date 2026-07-20)

Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1ADPCVSS8.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
3.1[email protected]Secondary9.6CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
3.1CNADECLARED9.6CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Parall Jspdf All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Parallax JsPDF affected < 4.2.1 Not specified
ADP Red Hat Red Hat Advanced Cluster Security 4.8 unaffected 1775594119 * rpm Not specified
ADP Red Hat Red Hat Advanced Cluster Security 4.9 unaffected 1775594284 * rpm Not specified

References

ReferenceSourceLinkTags
github.com/parallax/jsPDF/commit/87a40bbd07e6b30575196370670b41f264aa78d7 [email protected] github.com Patch
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31938.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com
github.com/parallax/jsPDF/releases/tag/v4.2.1 [email protected] github.com Product, Release Notes
access.redhat.com/security/cve/CVE-2026-31938 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/parallax/jsPDF/security/advisories/GHSA-wfv2-pwc8-crg5 [email protected] github.com Mitigation, Vendor Advisory
access.redhat.com/errata/RHSA-2026:7110 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:7128 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-03-18T04:02:27.320ZReported to Red Hat.
ADP2026-03-18T03:05:44.964ZMade public.

Solutions

ADP: RHSA-2026:7110: Red Hat Advanced Cluster Security 4.8

ADP: RHSA-2026:7128: Red Hat Advanced Cluster Security 4.9

Workarounds

ADP: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

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