---
cve: "CVE-2026-50631"
severity: "HIGH"
cvss: 7.4
epss: "29%"
vendor: "Apache Software Foundation"
kev: false
exploited: false
published: "2026-06-12 10:16:23"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T01:50:11+02:00"
---

# CVE-2026-50631

> 7.4 HIGH

## Beschreibung

A race condition in AbstractOAuthDataProvider allows concurrent requests using the same Refresh Token to bypass single-use semantics and generate multiple valid Access Tokens, when 'recycleRefreshTokens' is set to false. A leaked refresh token can be replayed concurrently by multiple attackers or threads. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 82e9f60f994a7fad2d89f3c94e9090a4a8990c70 (Commit)
- d2b2776cd44a8d2f391194d90f50ce7b3d61a1f6 (Commit)

## Referenzen

- <https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8>
- <http://www.openwall.com/lists/oss-security/2026/06/11/8>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-50631) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_