---
cve: "CVE-2026-67550"
severity: "MEDIUM"
cvss: 5.7
epss: "12%"
vendor: "uhop"
kev: false
exploited: false
published: "2026-07-30 20:18:15"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T16:43:47+02:00"
---

# CVE-2026-67550

> 5.7 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 56293de4fc0914d7bc35f92e98de25b0d9bb417d (Commit)
- 264378394ec80e1cca2188ecb496829da2eec6c8 (Commit)

## Referenzen

- <https://github.com/uhop/node-re2/security/advisories/GHSA-ff84-5f28-78qj>
- <https://github.com/uhop/node-re2/commit/56293de4fc0914d7bc35f92e98de25b0d9bb417d>
- <https://github.com/uhop/node-re2/releases/tag/1.25.2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-67550) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_