{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-104056 exists.","fix":"No fix has been published for CVE-2026-104056 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-104056 is a critical vulnerability in Authlib, published on 1 Oct 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-2026-104056 and fix it if it is affected.\n\nWhat it is: CVE-2026-104056 is a critical vulnerability in Authlib, published on 1 Oct 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-2026-104056 exists.\n\nAffected product: Authlib. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-104056/ (Markdown: https://insights.sbomify.com/CVE-2026-104056/index.md)","id":"CVE-2026-104056","markdown":"https://insights.sbomify.com/CVE-2026-104056/index.md","name":"CVE-2026-104056","record":{"aliases":["DEBIAN-CVE-2026-104056","GHSA-8wx9-759m-hfm8","UBUNTU-CVE-2026-104056"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Python auth library","requires_auth":"none","summary":"Attackers can poison cached discovery metadata to redirect authentication endpoints, bypassing origin validation in Authlib.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"certcc","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-829","name":"Inclusion of Functionality from Untrusted Control Sphere"},{"id":"CWE-346","name":"Origin Validation Error"},{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"Authlib version 1.7.2 and below contains a vulnerability where discovery JSON metadata is cached without validation or issuer-origin binding. This allows a poisoned discovery response to replace all endpoint values with attacker-controlled values rather than endpoint URLs that share the origin of the configured server metadata URL.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"CVE-2026-104056","id":"CVE-2026-104056","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Podgrab Unauthenticated DoS via Concurrent Map Access in WebSocket Handler","id":"CVE-2026-104057"},"packages":[],"prev":{"headline":"Monitoring-user password logged in cleartext by postgres_exporter in postgresql VM charm","id":"CVE-2026-104055"},"products":["Authlib"],"published":"2026-10-01","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"total"},"state":"PUBLISHED","updated":"2026-10-05","vendors":["Authlib"]},"summary":"Attackers can poison cached discovery metadata to redirect authentication endpoints, bypassing origin validation in Authlib.","url":"https://insights.sbomify.com/CVE-2026-104056/"}