CVE-2024-41655
HIGHCVE-2024-41655 is a high-severity (CVSS 7.5) CWE-624 vulnerability in tf2-item-format. O3 Security confirms whether CVE-2024-41655 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
TF2 Item Format Regular Expression Denial of Service vulnerability
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
tf2-item-formatnpmDescription
TF2 Item Format helps users format TF2 items to the community standards. Versions of tf2-item-format since at least 4.2.6 and prior to 5.9.14 are vulnerable to a Regular Expression Denial of Service (ReDoS) attack when parsing crafted user input. This vulnerability can be exploited by an attacker to perform DoS attacks on any service that uses any tf2-item-format to parse user input. Version 5.9.14 contains a fix for the issue.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | tf2-item-format | ≥ 4.2.6&&< 5.9.14 | 5.9.14 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tf2-item-format. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update tf2-item-format to 5.9.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-41655 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.
How O3 protects you
O3 pinpoints whether CVE-2024-41655 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2024-41655. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2024-41655 in your dependencies?
O3 detects CVE-2024-41655 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.