CVE WatchJul 28, 2026

CVE-2026-54635

pytonapi is a Python SDK for TONAPI that provides REST API, streaming, and webhook access to the TON blockchain. From 2.0.0 to 2.2.0, Tonapi

CVSS

7.5

High

EPSS

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KEV

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Exploit Today

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0-100

Published: Jul 28, 2026 · Last modified: Jul 28, 2026 · CWE-287

EPSS · 30d

Not enough EPSS history yet.

Technical description

pytonapi is a Python SDK for TONAPI that provides REST API, streaming, and webhook access to the TON blockchain. From 2.0.0 to 2.2.0, TonapiWebhookDispatcher fails to validate the Authorization header when a webhook handler is registered with the documented path argument, because setup() stores bearer tokens only under the default suffix paths and never adds the custom path to the token map, so self._tokens.get(path) returns None and the authentication guard is skipped. An unauthenticated remote attacker can POST forged payloads to the custom webhook endpoint and trigger victim-defined handlers. This issue is fixed in version 2.2.1.

Official references

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