stoatchat up to 0.8.2 Query Messages Route limit resource consumption

Summaryinfo

A vulnerability has been found in stoatchat up to 0.8.2 and classified as critical. This issue affects some unknown processing of the component Query Messages Route. Performing a manipulation of the argument limit results in resource consumption. This vulnerability is known as CVE-2025-71377. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in stoatchat up to 0.8.2. This affects an unknown part of the component Query Messages Route. The manipulation of the argument limit with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-71377 since 06/20/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 0.8.2 eliminates this vulnerability.

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Productinfo

Type

• Chat Software

Name

• stoatchat

Version

• 0.8.0
• 0.8.1
• 0.8.2

Website

• Product: https://github.com/stoatchat/stoatchat/

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CPE 2.2info

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