# CVE-2026-67550: node-re2: re2 provides Node.js bindings for Google's RE2 regular expression engine

CVE-2026-67550 is fixed in node-re2 on 1 platform by DEBIAN-CVE-2026-67550 (version 1.26.1+~cs1.7.0-1), released August 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-67550
- Priority: Routine
- CVSS: 5.7 (medium)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 30, 2026

## Description

re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2 validates lastIndex against the UTF-8 byte length of a subject but uses it as a UTF-16 code-unit offset in exec, test, match, replace, and split, allowing an attacker-influenced lastIndex on a non-ASCII subject to trigger an out-of-bounds heap read and an uncatchable process crash, with limited heap information disclosure in some cases. This issue is fixed in 1.25.2.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-re2 Debian 14 | 1.26.1+~cs1.7.0-1 | [DEBIAN-CVE-2026-67550](https://patchblox.com/security/data/fix/linux/debian-cve-2026-67550.md) | Aug 15, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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