CVE-2026-68499

MEDIUM 6.2

re2: Global `String.prototype.match` with an empty-matchable pattern never advances → infinite loop with unbounded native memory growth (DoS)

CVSS Score

6.2

EPSS Score

0.0%

EPSS Percentile

0th

re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2's String.prototype.match implementation with a global RE2 pattern that can match the empty string fails to advance its native matching cursor in lib/match.cc, causing an infinite loop and unbounded native memory growth that blocks the event loop and can exhaust host memory. This issue is fixed in 1.25.2.

CWE	CWE-835
Vendor	uhop
Product	node-re2
Published	Jul 30, 2026

Stay Ahead of the Next One

Get instant alerts for uhop node-re2

Be the first to know when new medium vulnerabilities affecting uhop node-re2 are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

uhop / node-re2

< 1.25.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/uhop/node-re2/security/advisories/GHSA-6hxr-mr5r-9836 github.com: https://github.com/uhop/node-re2/commit/56293de4fc0914d7bc35f92e98de25b0d9bb417d github.com: https://github.com/uhop/node-re2/releases/tag/1.25.2