Security readout for executives and security teams
Plain-English summary
CVE-2026-24737 affects jsPDF before 4.1.0. If an application lets untrusted users influence certain PDF form fields, they may inject PDF objects, including JavaScript actions, into generated documents. The harmful content runs when a victim opens the PDF, so business risk depends on where jsPDF-generated PDFs are created, shared, and trusted.
Executive priority
Prioritize remediation where jsPDF-generated PDFs are trusted, externally influenced, or opened by employees or customers. This is high severity because successful abuse can affect confidentiality and integrity after a victim opens a document, but the provided sources do not confirm active exploitation.
Technical view
The issue is PDF injection in jsPDF AcroForm APIs: AcroformChoiceField.addOption, AcroformChoiceField.setOptions, AcroFormCheckBox.appearanceState, and AcroFormRadioButton.appearanceState. Unsanitized input can alter PDF structure and add JavaScript actions. jsPDF versions before 4.1.0 are affected; 4.1.0 contains the fix. CVSS 3.1 is 8.3 high.
Likely exposure
Applications using parallax/jsPDF below 4.1.0 are exposed when untrusted input reaches the named AcroForm methods or properties. Exposure is higher for customer portals, document workflows, or automated PDF generation where generated PDFs are opened by staff, customers, or downstream partners.
Exploitation context
The bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation requires attacker-controlled input reaching vulnerable jsPDF AcroForm members and a victim opening the generated PDF in an environment that executes embedded PDF JavaScript.
Researcher notes
Focus assessment on data flow into the named AcroForm APIs, not every jsPDF use. Viewer behavior matters because the JavaScript action executes on document open. Evidence is strong for affected versions and fixed version, but the bundle does not provide exploit-in-the-wild evidence.
Mitigation direction
- Upgrade jsPDF to version 4.1.0 or later.
- Inventory applications and packages using parallax/jsPDF below 4.1.0.
- Block untrusted input from the affected AcroForm APIs until upgraded.
- Review vendor advisories and Red Hat errata for distribution-specific guidance.
- Treat generated PDFs from affected workflows as potentially unsafe until remediated.
Validation and detection
- Check dependency manifests and lockfiles for jsPDF versions below 4.1.0.
- Search code for the four affected AcroForm members named in the advisory.
- Trace whether user-controlled data can reach those members.
- Confirm deployed builds contain jsPDF 4.1.0 or later.
- Review PDF-generation workflows that share documents with internal or external users.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-116: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-917: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-24737 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L2.85.5redhat-SADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N2.85.2GitHub_MVulnerability scoring details
Base CVSS 3.1 score
8.3HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- ADP timelineredhat-SADP
Made public.
- CVE publishedCVE Program
The CVE record was published.
- ADP timelineredhat-SADP
Reported to Red Hat.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2026-02-03T00:01:51.004Z: Reported to Red Hat.
- 2026-02-02T20:29:05.011Z: Made public.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/parallax/jsPDF/security/advisories/GHSA-pqxr-3g65-p328CVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/parallax/jsPDF/commit/da291a5f01b96282545c9391996702cdb8879f79CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/parallax/jsPDF/releases/tag/v4.1.0CVE reference, GitHub_M · x_refsource_MISC
- https://access.redhat.com/security/cve/CVE-2026-24737CVE reference, redhat-SADP · vdb-entry, x_refsource_REDHAT
- RHBZ#2436115CVE reference, redhat-SADP · issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24737.jsonCVE reference, redhat-SADP · x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:4466CVE reference, redhat-SADP · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:4467CVE reference, redhat-SADP · vendor-advisory, x_refsource_REDHAT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Encoding or Escaping of Output
Improper Encoding or Escaping of Output represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.