TF2 Item Format Regular Expression Denial of Service vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-1333.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| danocmx | node-tf2-item-format | 4.2.6 to before 5.9.14 | 5.9.14 | Patch available | CNA |
| — | tf2-item-format (npm) | 4.2.6 to before 5.9.14 | 5.9.14 | Patch available | GHSA-8h55-q5qq-p685 |
- node-tf2-item-format Vendordanocmx Affected 4.2.6 to before 5.9.14 Fixed in 5.9.14 Patch available CNA
- tf2-item-format (npm) Vendor— Affected 4.2.6 to before 5.9.14 Fixed in 5.9.14 Patch available GHSA-8h55-q5qq-p685
Remediation
- Fix · CNA node-tf2-item-format (danocmx) Fixed in 5.9.14
- Fix · GHSA-8h55-q5qq-p685 tf2-item-format (npm) Fixed in 5.9.14 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-41655
- 2026-10-03 Alias added: GHSA-8h55-q5qq-p685
References
Other 4
Sources
- CVE-2024-41655 · CVE Program
- CVE-2024-41655 · NVD
- FIRST EPSS
- GHSA-8h55-q5qq-p685 · GitHub Advisory Database · CC BY 4.0
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