CVE-2026-109563 (GCVE-0-2026-109563)

Vulnerability from cvelistv5 – Published: 2026-10-12 20:55 – Updated: 2026-10-12 20:55
VLAI
Title
N3.js before 2.11.1 ReDoS via N3Lexer Numeric-Literal Regex
Summary
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.
Severity
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
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5953 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
rdfjs N3.js Affected: 0 , < 2.11.1 (semver)
Unaffected: 2.11.1 (semver)
guessed Create a notification for this product.
Date Public
2026-10-04 00:00
Credits
Mohammed Arfath A
Show details on NVD website
To clipboard 

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        }
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      "metrics": [
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    "cveId": "CVE-2026-109563",
    "datePublished": "2026-10-12T20:55:16.880Z",
    "dateReserved": "2026-10-12T19:27:52.560Z",
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          }
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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