CVE-2025-71377

stoatchat before 20250210-1 Unrestricted Message History Fetch

State: Published
Severity: 8.7 High
Published: Jul 16, 2026
Updated: Jul 20, 2026
Reserved: Jun 20, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	VulnCheck

Weaknesses

CWE-1025 Comparison Using Wrong Factors

Affected Products

Product	Versions
stoatchatstoatchat	before 0.8.2Affected 0.8.2Not affected

References

GitHub Security Advisory (GHSA-h7h6-7pxm-mc66)vendor-advisory
https://github.com/stoatchat/stoatchat/commit/5f84daa9dba34c103cd83a2ee1f5e5ba900bfe94patch
VulnCheck Advisory: stoatchat before 20250210-1 Unrestricted Message History Fetchthird-party-advisory

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