CVE-2025-71377

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.

CVSS 4.0

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS

0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-25)

CWE

CWE-1025

Published

2026-07-16

Modified

2026-10-06

Record from

the NVD, synced 2026-10-19

References

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

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