CVE-2025-2792 — @mozilla/readability
Fix: mozilla/readability@1c4d63bCVE-2025-2792 is a security vulnerability in @mozilla/readability. A fix is available for @mozilla/readability — see the affected versions and patch details below.
@mozilla/readability Denial of Service through Regex
Real-World Exposure
@mozilla/readabilityReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects npm packages — download data is not available via public APIs for these ecosystems.
Description
Specially crafted titles may have caused a regular expression to excessively backtrack and cause a local denial of service.
Additional Details are available at Bugzilla
Credit: DayShift
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @mozilla/readability | all versions | 0.6.0npm install @mozilla/readability@0.6.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @mozilla/readability, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update @mozilla/readability to 0.6.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-2792 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.
Frequently Asked Questions
Is CVE-2025-2792 in your dependencies?
Find it across npm, including transitive dependencies.