PatchSiren cyber security CVE debrief
CVE-2025-71377 stoatchat CVE debrief
A logic error was found in the query messages route of stoatchat (delta) versions before 20250210-1 (0.8.2). This error allows a remote unauthenticated attacker to craft requests that can download the entire message history of a channel in a single request, potentially leading to denial of service through resource exhaustion. The vulnerability has a CVSS score of 8.7 and is classified as HIGH severity.
- Vendor
- stoatchat
- Product
- Unknown
- CVSS
- HIGH 8.7
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-16
- Original CVE updated
- 2026-07-16
- Advisory published
- 2026-07-16
- Advisory updated
- 2026-07-16
Who should care
Users of stoatchat (delta) versions before 20250210-1 (0.8.2) should be aware of this vulnerability as it can lead to significant resource exhaustion and potential denial of service attacks. Operators, platform administrators, vulnerability management teams, and security teams should review the official advisory and take necessary actions to mitigate the vulnerability.
Technical summary
The vulnerability in stoatchat (delta) versions before 20250210-1 (0.8.2) stems from 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. The database interprets this as 'no limit', allowing an attacker to download the entire message history of a channel in a single request. This can be exploited by a remote unauthenticated attacker who can send multiple such requests in parallel, leading to denial of service through resource exhaustion.
Defensive priority
High
Recommended defensive actions
- Update stoatchat (delta) to version 20250210-1 (0.8.2) or later.
- Implement rate limiting on message fetch requests to prevent abuse.
- Monitor for unusual patterns of message fetch requests that could indicate an ongoing attack.
- Consider implementing additional security measures such as authentication for message fetch requests.
- Review compensating controls for exposed systems while remediation is scheduled and verified.
- Check relevant monitoring, detection, and logs for exposed assets that need extra review.
- Track exceptions, retest remediated assets, and close the item only after evidence is documented.
Evidence notes
The CVE record was published on 2026-07-16T13:16:24.057Z and was last modified on 2026-07-16T14:16:46.890Z. The NVD entry is currently Deferred. The vulnerability affects stoatchat (delta) versions before 20250210-1 (0.8.2). Evidence of exploitation is limited, and defenders should verify affected deployments and review official advisories.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-16T13:16:24.057Z and has not been modified since then. The NVD entry is currently Deferred.