CVE-2021-23353 is a high-severity (CVSS 7.5) vulnerability in jspdf. A fix is available for jspdf — see the affected versions and patch details below.
jspdf vulnerable to Regular Expression Denial of Service (ReDoS)
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2021-23353 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
jspdfnpmDescription
This affects the package jspdf before 2.3.1. ReDoS is possible via the addImage function.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | jspdf | all versions | 2.3.1npm install jspdf@2.3.1 |
Affected Products
jspdfparallDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for jspdf, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update jspdf to 2.3.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-23353 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Frequently Asked Questions
Is CVE-2021-23353 in your dependencies?
Find it across npm, including transitive dependencies.