PT-2026-60457 · Stoatchat · Stoatchat

CVE-2025-71377 · Published 2026-07-16 · Updated 2026-07-16

NVD

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

Weakness Enumeration

CWE-1025

Related Identifiers

CVE-2025-71377

Affected Products

Stoatchat

References · 4

• https://github.com/stoatchat/stoatchat/security/advisories/GHSA-h7h6-7pxm-mc66 · Vendor Advisory
• https://github.com/stoatchat/stoatchat/commit/5f84daa9dba34c103cd83a2ee1f5e5ba900bfe94 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-71377 · Security Note
• https://vulncheck.com/advisories/stoatchat-before-20250210-1-unrestricted-message-history-fetch · Note