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VulnerabilityPublished

CVE-2026-24133: parallax jsPDF · Unthrottled Resource Allocation

Affects parallax jsPDFSource CVE Database V5

0

Not known to be exploited · CVSS 8.7 High : upgrade to 4.1.0 soon.

Data as of 26 Oct 2026, 15:59 UTC

CVSS 4.0 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.1.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade parallax jsPDF to 4.1.0.

Affected software

ProductAffectedFixed in
parallaxjsPDFAffected
  • <4.1.0
Fixed in
  • 4.1.0

AI-suggested

  1. Upgrade all instances of jsPDF to version 4.1.0 or later immediately to ensure the vulnerability is patched.
  2. Implement strict input validation and sanitization for all image data and URLs passed to the addImage and html methods, enforcing maximum allowed dimensions and rejecting suspicious BMP files.
  3. Employ runtime monitoring and resource usage limits on services generating PDFs to detect and mitigate abnormal memory consumption patterns.
  4. If upgrading is not immediately feasible, consider disabling or restricting functionality that accepts user-supplied images or HTML content for PDF generation.
  5. Conduct code reviews and security testing focused on third-party library usage, especially for components handling untrusted inputs.
  6. Educate developers about the risks of resource exhaustion vulnerabilities and best practices for secure PDF generation.
  7. Monitor security advisories for any emerging exploits related to this vulnerability and apply patches promptly.

Description

CVE-2026-24133 is a high-severity vulnerability in jsPDF versions prior to 4.1.0, caused by improper resource allocation when processing user-supplied image data via the addImage and html methods. Attackers can supply malicious BMP files with extremely large dimensions, leading to excessive memory allocation and resulting in denial of service (DoS) through out-of-memory errors. This vulnerability requires no authentication or user interaction and can be exploited remotely via network access. The issue has been fixed in jsPDF version 4.1.0. European organizations using vulnerable jsPDF versions in web applications or services that accept user-generated PDFs are at risk of service disruption. Mitigation involves upgrading to jsPDF 4.

References

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