Node.js Bindings for Google's RE2 Regular Expression Engine Vulnerability
CVE-2026-68499

6.2MEDIUM

Key Information:

Vendor

Uhop

Status
Node-re2
Vendor
CVE Published:
30 July 2026

What is CVE-2026-68499?

The Node.js bindings for Google's RE2 regular expression engine are susceptible to a critical implementation flaw. Prior to version 1.25.2, the String.prototype.match function, when using a global RE2 pattern that matches the empty string, fails to advance its native matching cursor. This oversight can cause an infinite loop, leading to significant unbounded memory growth, blocking the event loop and potentially exhausting system memory. The issue has been addressed in version 1.25.2.

Affected Version(s)

node-re2 < 1.25.2

References

https://github.com/uhop/node-re2/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/uhop/node-re2/commit/56293de4fc0914d7b...
x_refsource_MISC
https://github.com/uhop/node-re2/releases/tag/1.25.2
x_refsource_MISC

CVSS V3.1

Score:
6.2
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.