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Full vulnerability report · 2026
CVE-2026-25940High confidence

jsPDF's PDF Injection in AcroForm module allows Arbitrary JavaScript Execution (RadioButton.createOption and "AS" property)

parallax · jsPDF

8.1HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-25940 · CSAF 2.0 · revision 3 · finalRed Hat Product SecurityjsPDF: PDF injection in AcroForm module allows arbitrary JavaScript execution (RadioButton children)
8 fixed

The vendor explicitly identifies these products or versions as containing the fix.

  • registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:5533b87f5a3c9df67608236393d31507dd2b1f0af0ca787997f9dfed44222d9d_amd64 as a component of Red Hat Advanced Cluster Security 4.8
  • registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:8a3f82a33e522ce518e52411d48475cb47bea153176b833eace73fc24a5b7672_ppc64le as a component of Red Hat Advanced Cluster Security 4.8
  • registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:c7d8d836b92a80d6d02a8ea73a69d773b0983d9bae4f217b8f4adb39a0e00d86_s390x as a component of Red Hat Advanced Cluster Security 4.8
  • registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:d9d95fe1014cf1632681171d34f760a1d7ffe81c81df1fb9942c1a08f4ffb857_arm64 as a component of Red Hat Advanced Cluster Security 4.8
  • registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:433c4926f5a93402642d459c627a1ecf65e101a42bcce4042c36858205b93be9_arm64 as a component of Red Hat Advanced Cluster Security 4.9
  • registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:96d11ff01950830eac7df626092e231ab3ff78f678fb6ddb3e88bf58dd2bda65_ppc64le as a component of Red Hat Advanced Cluster Security 4.9
  • registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:e4554b911cb8df3f181ae1c3e8d3d69b2feb2985f71de1e782575b4f92165f96_amd64 as a component of Red Hat Advanced Cluster Security 4.9
  • registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:f6c3977c2d562656928aa1b8477b98174a8d26db903954bdfc766cc8dfc17c7d_s390x as a component of Red Hat Advanced Cluster Security 4.9
Summary
A flaw was found in jsPDF. The properties and methods of the Acroform module accept user input without sanitization, allowing an attacker to inject arbitrary PDF objects, such as JavaScript actions. Specifically, if an attacker can supply a specially crafted input to the AcroformChildClass.appearanceState property, JavaScript actions can be executed when a user opens the generated PDF document and hovers over the radio button.
Remediation
If you are using an earlier version of RHACS, you are advised to upgrade to the version of RHACS mentioned in the synopsis and release notes in order to take advantage of the enhancements, bug fixes, and/or security patches in the release.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-8108

No EUVD known-exploited evidence

jsPDF is a library to generate PDFs in JavaScript. Prior to 4.2.0, user control of properties and methods of the Acroform module allows users to inject arbitrary PDF objects, such as JavaScript actions. If given the possibility to pass unsanitized input to one of the following property, a user can inject arbitrary PDF objects, such as JavaScript actions, which are executed when the victim hovers over the radio option. The vulnerability has been fixed in jsPDF@4.2.0. As a workaround, sanitize user input before passing it to the vulnerable API members.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
8.1 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

jsPDF is a library to generate PDFs in JavaScript. Prior to 4.2.0, user control of properties and methods of the Acroform module allows users to inject arbitrary PDF objects, such as JavaScript actions. If given the possibility to pass unsanitized input to one of the following property, a user can inject arbitrary PDF objects, such as JavaScript actions, which are executed when the victim hovers over the radio option. The vulnerability has been fixed in jsPDF@4.2.0. As a workaround, sanitize user input before passing it to the vulnerable API members.

What

jsPDF is a library to generate PDFs in JavaScript. Prior to 4.2.0, user control of properties and methods of the Acroform module allows users to inject arbitrary PDF objects, such as JavaScript actions. If given the possibility to pass unsanitized input to one of the following property, a user can inject arbitrary PDF objects, such as JavaScript actions, which are executed when the victim hovers over the radio option. The vulnerability has been fixed in jsPDF@4.2.0. As a workaround, sanitize user input before passing it to the vulnerable API members.

Why

The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

jsPDF is a library to generate PDFs in JavaScript. Prior to 4.2.0, user control of properties and methods of the Acroform module allows users to inject arbitrary PDF objects, such as JavaScript actions. If given the possibility to pass unsanitized input to one of the following property, a user can inject arbitrary PDF objects, such as JavaScript actions, which are executed when the victim hovers over the radio option. The vulnerability has been fixed in jsPDF@4.2.0. As a workaround, sanitize user input before passing it to the vulnerable API members.

Why

The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Encoding or Escaping of Output → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-116 ↗

CWE-116: Improper Encoding or Escaping of Output. The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-116
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-8108Official EUVD mapping

jsPDF is a library to generate PDFs in JavaScript. Prior to 4.2.0, user control of properties and methods of the Acroform module allows users to inject arbitrary PDF objects, such as JavaScript actions. If given the possibility to pass unsanitized input to one of the following property, a user can inject arbitrary PDF objects, such as JavaScript actions, which are executed when the victim hovers over the radio option. The vulnerability has been fixed in jsPDF@4.2.0. As a workaround, sanitize user input before passing it to the vulnerable API members.

Official EUVD record
BSI · German · WID-SEC-W-2026-2933Splunk SOAR: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Splunk SOAR ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen SQL-Injection Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, und um beliebigen Programmcode auszuführen.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-1056Multiples vulnérabilités dans les produits Splunk

d?id=CVE-2026-24040 Référence CVE CVE-2026-24043 https://www.cve.org/CVERecord?id=CVE-2026-24043 Référence CVE CVE-2026-24133 https://www.cve.org/CVERecord?id=CVE-2026-24133 Référence CVE CVE-2026-24737 https://www.cve.org/CVERecord?id=CVE-2026-24737 Référence CVE CVE-2026-25535 https://www.cve.org/CVERecord?id=CVE-2026-25535 Référence CVE CVE-2026-25673 https://www.cve.org/CVERecord?id=CVE-2026-25673 Référence CVE CVE-2026-25674 https://www.cve.org/CVERecord?id=CVE-2026-25674 Référence CVE CVE-2026-25679 https://www.cve.org/CVERecord?id=CVE-2026-25679 Référence CVE CVE-2026-25755 https://www.cve.org/CVERecord?id=CVE-2026-25755 Référence CVE CVE-2026-25940 https://www.cve.org/CVERecord?id=CVE-2026-25940 Référence CVE CVE-2026-26007 https://www.cve.org/CVERecord?id=CVE-2026-26007 Référence CVE CVE-2026-26996 https://www.cve.org/CVERecord?id=CVE-2026-26996 Référence CVE CVE-2026-27140 https://www.cve.org/CVERecord?id=CVE-2026-27140 Référence CVE CVE-2026-27143 https://www.cve.org/CVERecord?id=CVE-2026-27143 Référence CVE CVE-2026-27144 https://www.cve.org/CVERecord?id=CVE-2026-27144 Référence CVE CVE-2026-27199 https://www.cve.org/CVERecord?id=CVE-2026-27199 Référence CVE CVE-2026-2739 https://www.cve.org/CVERecord?id=CVE-2026-2739 Référence CVE CVE-2026-27651 https://www.cve.org/CVERecord?id=CV

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0834Multiples vulnérabilités dans les produits IBM

rd?id=CVE-2026-2391 Référence CVE CVE-2026-24001 https://www.cve.org/CVERecord?id=CVE-2026-24001 Référence CVE CVE-2026-24040 https://www.cve.org/CVERecord?id=CVE-2026-24040 Référence CVE CVE-2026-24043 https://www.cve.org/CVERecord?id=CVE-2026-24043 Référence CVE CVE-2026-24133 https://www.cve.org/CVERecord?id=CVE-2026-24133 Référence CVE CVE-2026-24737 https://www.cve.org/CVERecord?id=CVE-2026-24737 Référence CVE CVE-2026-25535 https://www.cve.org/CVERecord?id=CVE-2026-25535 Référence CVE CVE-2026-25639 https://www.cve.org/CVERecord?id=CVE-2026-25639 Référence CVE CVE-2026-25755 https://www.cve.org/CVERecord?id=CVE-2026-25755 Référence CVE CVE-2026-25940 https://www.cve.org/CVERecord?id=CVE-2026-25940 Référence CVE CVE-2026-27212 https://www.cve.org/CVERecord?id=CVE-2026-27212 Référence CVE CVE-2026-27903 https://www.cve.org/CVERecord?id=CVE-2026-27903 Référence CVE CVE-2026-27904 https://www.cve.org/CVERecord?id=CVE-2026-27904 Référence CVE CVE-2026-29063 https://www.cve.org/CVERecord?id=CVE-2026-29063 Référence CVE CVE-2026-2950 https://www.cve.org/CVERecord?id=CVE-2026-2950 Référence CVE CVE-2026-31898 https://www.cve.org/CVERecord?id=CVE-2026-31898 Référence CVE CVE-2026-31938 https://www.cve.org/CVERecord?id=CVE-2026-31938 Référence CVE CVE-2026-32141 https://www.cve.org/CVERecord?id=CV

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
< 4.2.0
Fixed
registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:5533b87f5a3c9df67608236393d31507dd2b1f0af0ca787997f9dfed44222d9d_amd64 as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:8a3f82a33e522ce518e52411d48475cb47bea153176b833eace73fc24a5b7672_ppc64le as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:c7d8d836b92a80d6d02a8ea73a69d773b0983d9bae4f217b8f4adb39a0e00d86_s390x as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:d9d95fe1014cf1632681171d34f760a1d7ffe81c81df1fb9942c1a08f4ffb857_arm64 as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:433c4926f5a93402642d459c627a1ecf65e101a42bcce4042c36858205b93be9_arm64 as a component of Red Hat Advanced Cluster Security 4.9; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:96d11ff01950830eac7df626092e231ab3ff78f678fb6ddb3e88bf58dd2bda65_ppc64le as a component of Red Hat Advanced Cluster Security 4.9; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:e4554b911cb8df3f181ae1c3e8d3d69b2feb2985f71de1e782575b4f92165f96_amd64 as a component of Red Hat Advanced Cluster Security 4.9; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:f6c3977c2d562656928aa1b8477b98174a8d26db903954bdfc766cc8dfc17c7d_s390x as a component of Red Hat Advanced Cluster Security 4.9
Action
If you are using an earlier version of RHACS, you are advised to upgrade to the version of RHACS mentioned in the synopsis and release notes in order to take advantage of the enhancements, bug fixes, and/or security patches in the release.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 19 Feb 2026 · Last source change 7 Sept 2026, 12:05 UTC · CWE-116 · Improper Encoding or Escaping of Output

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-8108
Product sourceCNA
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:5533b87f5a3c9df67608236393d31507dd2b1f0af0ca787997f9dfed44222d9d_amd64 as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:8a3f82a33e522ce518e52411d48475cb47bea153176b833eace73fc24a5b7672_ppc64le as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:c7d8d836b92a80d6d02a8ea73a69d773b0983d9bae4f217b8f4adb39a0e00d86_s390x as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:d9d95fe1014cf1632681171d34f760a1d7ffe81c81df1fb9942c1a08f4ffb857_arm64 as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:433c4926f5a93402642d459c627a1ecf65e101a42bcce4042c36858205b93be9_arm64 as a component of Red Hat Advanced Cluster Security for Kubernetes 4.9; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:96d11ff01950830eac7df626092e231ab3ff78f678fb6ddb3e88bf58dd2bda65_ppc64le as a component of Red Hat Advanced Cluster Security for Kubernetes 4.9; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:e4554b911cb8df3f181ae1c3e8d3d69b2feb2985f71de1e782575b4f92165f96_amd64 as a component of Red Hat Advanced Cluster Security for Kubernetes 4.9; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:f6c3977c2d562656928aa1b8477b98174a8d26db903954bdfc766cc8dfc17c7d_s390x as a component of Red Hat Advanced Cluster Security for Kubernetes 4.9
    After
    Fixed: registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:5533b87f5a3c9df67608236393d31507dd2b1f0af0ca787997f9dfed44222d9d_amd64 as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:8a3f82a33e522ce518e52411d48475cb47bea153176b833eace73fc24a5b7672_ppc64le as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:c7d8d836b92a80d6d02a8ea73a69d773b0983d9bae4f217b8f4adb39a0e00d86_s390x as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:d9d95fe1014cf1632681171d34f760a1d7ffe81c81df1fb9942c1a08f4ffb857_arm64 as a component of Red Hat Advanced Cluster Security 4.8; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:433c4926f5a93402642d459c627a1ecf65e101a42bcce4042c36858205b93be9_arm64 as a component of Red Hat Advanced Cluster Security 4.9; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:96d11ff01950830eac7df626092e231ab3ff78f678fb6ddb3e88bf58dd2bda65_ppc64le as a component of Red Hat Advanced Cluster Security 4.9; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:e4554b911cb8df3f181ae1c3e8d3d69b2feb2985f71de1e782575b4f92165f96_amd64 as a component of Red Hat Advanced Cluster Security 4.9; registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8@sha256:f6c3977c2d562656928aa1b8477b98174a8d26db903954bdfc766cc8dfc17c7d_s390x as a component of Red Hat Advanced Cluster Security 4.9
    Red Hat Product Security ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-8108↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-25940 · cve.blacktree.nl