---
cve: "CVE-2026-86145"
severity: "HIGH"
cvss: 8.2
epss: "31.7%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-09-05 06:17:10"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T03:34:46+02:00"
---

# CVE-2026-86145

> 8.2 HIGH

## Beschreibung

PCRE2 before 10.48 allows a pcre2_dfa_match out-of-bounds write because reuse of a cached workspace block, in a recursive DFA matching workspace, lacks a size check (even though a newly allocated block, for the same purpose, does have a size check). This outcome requires an attacker-controlled regular expression, or a recursive pattern in conjunction with a small heap limit (this can be set through the API).

## CVSS-Vektor

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

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

## Referenzen

- <https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48>
- <https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-3r4p-g7gg-ppmf>
- <http://www.openwall.com/lists/oss-security/2026/09/05/3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-86145) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_