CVE-2026-54635

{"id": "CVE-2026-54635", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54635", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-28T17:29:49.265991Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "nessshon", "product": "tonapi", "versions": [{"status": "affected", "version": ">= 2.0.0, < 2.2.1"}]}]}], "published": "2026-07-28T18:17:22.427", "references": [{"url": "https://github.com/nessshon/tonapi/commit/854222b7ee68d3fb7b4d6d899d200f388483bd86", "source": "security-advisories@github.com"}, {"url": "https://github.com/nessshon/tonapi/releases/tag/v2.2.1", "source": "security-advisories@github.com"}, {"url": "https://github.com/nessshon/tonapi/security/advisories/GHSA-3fcr-jvgp-7f58", "source": "security-advisories@github.com"}, {"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pytonapi/PYSEC-2026-3614.yaml", "source": "security-advisories@github.com"}, {"url": "https://github.com/nessshon/tonapi/security/advisories/GHSA-3fcr-jvgp-7f58", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "pytonapi es un SDK de Python para TONAPI que proporciona API REST, streaming y acceso a webhooks a la cadena de bloques TON. De 2.0.0 a 2.2.0, TonapiWebhookDispatcher no valida el encabezado de autorizaci\u00f3n cuando un gestor de webhook se registra con el argumento de ruta documentado, porque setup() almacena tokens de portador solo bajo las rutas de sufijo predeterminadas y nunca a\u00f1ade la ruta personalizada al mapa de tokens, por lo que self._tokens.get(path) devuelve None y la protecci\u00f3n de autenticaci\u00f3n se omite. Un atacante remoto no autenticado puede enviar cargas \u00fatiles falsificadas al punto final de webhook personalizado y activar gestores definidos por la v\u00edctima. Este problema se corrige en la versi\u00f3n 2.2.1."}], "lastModified": "2026-10-23T23:10:00.157", "sourceIdentifier": "security-advisories@github.com"}