---
cve: "CVE-2025-71377"
severity: "HIGH"
cvss: 8.7
epss: "0.7%"
vendor: "stoatchat"
kev: false
exploited: false
published: "2026-07-16 13:16:24"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-28T15:52:34+02:00"
---

# CVE-2025-71377

> 8.7 HIGH · 🧪 PoC

## Beschreibung

stoatchat (delta) versions before 20250210-1 (0.8.2) contain a logic error in the query messages route. When fetching messages 'nearby' another message, the database query can be given a message limit of zero, which the database interprets as 'no limit'. A remote unauthenticated attacker can craft nearby message fetch requests to download an entire channel's message history in a single expensive request, and can send many such requests in parallel, resulting in denial of service through resource exhaustion.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- eb5f5f91cdd2eb37b4b99ed66b90887b8c6f4895 (Commit)
- 5f84daa9dba34c103cd83a2ee1f5e5ba900bfe94 (Commit)

## Referenzen

- <https://github.com/stoatchat/stoatchat/security/advisories/GHSA-h7h6-7pxm-mc66>
- <https://github.com/stoatchat/stoatchat/commit/5f84daa9dba34c103cd83a2ee1f5e5ba900bfe94>
- <https://www.vulncheck.com/advisories/stoatchat-before-20250210-1-unrestricted-message-history-fetch>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-71377) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_