Vulnerability Description
aiosend is a synchronous and asynchronous Crypto Pay API client. Pror to version 3.0.7, `WebhookHandler.feed_update()` deserializes the entire request body before verifying the HMAC signature. This allows an unauthenticated attacker to force expensive parsing of arbitrary JSON payloads that will ultimately be rejected, leading to unnecessary CPU and memory consumption. Version 3.0.7 fixes the issue. Some workarounds are available. Restrict request body size at the reverse proxy or web framework, rate-limit webhook endpoints, and/or reject oversized requests before JSON parsing.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/vovchic17/aiosend/commit/db20f0a742209dfac181863d398ec5112687
- https://github.com/vovchic17/aiosend/releases/tag/v3.0.7
- https://github.com/vovchic17/aiosend/security/advisories/GHSA-7m8f-hgjq-8gc9
FAQ
What is CVE-2026-70646?
CVE-2026-70646 is a vulnerability with a CVSS score of 7.5 (HIGH). aiosend is a synchronous and asynchronous Crypto Pay API client. Pror to version 3.0.7, `WebhookHandler.feed_update()` deserializes the entire request body before verifying the HMAC signature. This al...
How severe is CVE-2026-70646?
CVE-2026-70646 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-70646?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.