{"answers":{"affected":"3 open source packages ship an affected version, including pytonapi.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54635 exists.","fix":"Upgrade pytonapi to 2.2.1 or later.","what":"CVE-2026-54635 is a high-severity authentication bypass vulnerability in nessshon tonapi, published on 28 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54635 and fix it if it is affected.\n\nWhat it is: CVE-2026-54635 is a high-severity authentication bypass vulnerability in nessshon tonapi, published on 28 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54635 exists.\n\nAffected packages and fixed versions:\n- pytonapi (PyPI): affected from 2.0.0; fixed in 2.2.1\n- pytonapi (PyPI): affected from 2.0.0; fixed in 2.2.1\n- pytonapi (PyPI): affected from 2.0.0; fixed in 2.2.1\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-54635/ (Markdown: https://insights.sbomify.com/CVE-2026-54635/index.md)","id":"CVE-2026-54635","markdown":"https://insights.sbomify.com/CVE-2026-54635/index.md","name":"CVE-2026-54635","record":{"aliases":["GHSA-3fcr-jvgp-7f58","PYSEC-2026-3614"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass","code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Python TON blockchain SDK","requires_auth":"none","summary":"An unauthenticated attacker can bypass webhook authentication in the pytonapi library by using a custom path, allowing them to trigger victim-defined handlers with forged payloads.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"pytonapi has a Webhook Custom Path Authentication Bypass","id":"CVE-2026-54635","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"Dokku: OS Command Injection via app.json managed Cron","id":"CVE-2026-54636"},"packages":[{"ecosystem":"PyPI","fixed":["2.2.1"],"introduced":["2.0.0"],"last_affected":[],"package":"pytonapi","purl":null,"source":"GHSA-3fcr-jvgp-7f58"},{"ecosystem":"PyPI","fixed":["2.2.1"],"introduced":["2.0.0"],"last_affected":[],"package":"pytonapi","purl":"pkg:pypi/pytonapi","source":"GHSA-3fcr-jvgp-7f58"},{"ecosystem":"PyPI","fixed":["2.2.1"],"introduced":["2.0.0"],"last_affected":[],"package":"pytonapi","purl":"pkg:pypi/pytonapi","source":"PYSEC-2026-3614"}],"prev":{"headline":"Hamlib: rigctld `send_raw` Stack Out-of-Bounds Write and Uninitialized Memory Disclosure","id":"CVE-2026-54634"},"products":["tonapi"],"published":"2026-07-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-11","vendors":["nessshon"]},"summary":"An unauthenticated attacker can bypass webhook authentication in the pytonapi library by using a custom path, allowing them to trigger victim-defined handlers with forged payloads.","url":"https://insights.sbomify.com/CVE-2026-54635/"}