CVE-2026-109563
N3.js before 2.11.1 ReDoS via N3Lexer Numeric-Literal Regex
- State
- Published
- Severity
- 8.7 High
- Published
- Oct 12, 2026
- Updated
- Oct 14, 2026
- Reserved
- Oct 12, 2026
Description
N3.js before 2.11.1 contains a regular expression denial of service vulnerability in the N3Lexer number pattern that backtracks quadratically on long digit runs. Attackers can supply untrusted Turtle or N3 input containing long runs of digits that do not end a number, blocking the Node.js event loop and causing denial of service.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-1333 Inefficient Regular Expression Complexity
Affected Products
| Product | Versions |
|---|---|
N3.jsrdfjs |
|
References
- GitHub Pull Request #760issue-trackingpatch
- Patch Commitpatch
- https://github.com/rdfjs/N3.jsproduct
- VulnCheck Advisory: N3.js before 2.11.1 ReDoS via N3Lexer Numeric-Literal Regexthird-party-advisory
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