CVE-2022-25887 is a medium-severity (CVSS 5.3) CWE-1333 vulnerability in sanitize-html. A fix is available for sanitize-html — see the affected versions and patch details below.
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
Where this sits among everything scored
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.
sanitize-htmlnpmDescription
The package sanitize-html before 2.7.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure global regular expression replacement logic of HTML comment removal.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | sanitize-html | all versions | 2.7.1npm install sanitize-html@2.7.1 |
Affected Products
sanitize-htmlapostrophecmsDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for sanitize-html, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update sanitize-html to 2.7.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-25887 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-2022-25887 in your dependencies?
Find it across npm, including transitive dependencies.