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    2 vulnerabilities by nessshon

    CVE-2026-54635 (GCVE-0-2026-54635)

    Vulnerability from nvd – Published: 2026-07-28 17:09 – Updated: 2026-07-28 17:31
    VLAI
    Title
    pytonapi has a Webhook Custom Path Authentication Bypass
    Summary
    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.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-287 - Improper Authentication
    Assigner
    References
    Impacted products
    Vendor Product Version
    nessshon tonapi Affected: >= 2.0.0, < 2.2.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-54635 (GCVE-0-2026-54635)

    Vulnerability from cvelistv5 – Published: 2026-07-28 17:09 – Updated: 2026-07-28 17:31
    VLAI
    Title
    pytonapi has a Webhook Custom Path Authentication Bypass
    Summary
    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.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-287 - Improper Authentication
    Assigner
    References
    Impacted products
    Vendor Product Version
    nessshon tonapi Affected: >= 2.0.0, < 2.2.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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