---
cve: "CVE-2026-34087"
severity: "MEDIUM"
cvss: 5.1
epss: "27%"
vendor: "Wikimedia Foundation"
kev: false
exploited: false
published: "2026-05-11 16:17:30"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T12:48:29+02:00"
---

# CVE-2026-34087

> 5.1 MEDIUM

## Beschreibung

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation OATHAuth.

This issue affects OATHAuth: from * before 1.43.7, 1.44.4, 1.45.2.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/S:N/AU:Y/R:A/RE:M
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |

## Patch verfügbar (OSV)

- 59b795f1b1b2f664b0f9d966b93f8a3347d3d17c (Commit)
- d97186dd0b639fe0d4e98e839df52497f2a632a7 (Commit)

## Referenzen

- <https://phabricator.wikimedia.org/T412061>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-34087) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_