{"answers":{"affected":"2 open source packages ship an affected version, including authlib. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-114620 in the wild and no public exploit code.","fix":"Upgrade authlib to 1.9.0 or later.","what":"CVE-2026-114620 is a medium-severity vulnerability in authlib, published on 22 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-114620 and fix it if it is affected.\n\nWhat it is: CVE-2026-114620 is a medium-severity vulnerability in authlib, published on 22 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-114620 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- authlib (PyPI): affected from 1.6.0; fixed in 1.9.0\n- authlib (PyPI): affected from 1.6.0; fixed in 1.9.0\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-2026-114620/ (Markdown: https://insights.sbomify.com/CVE-2026-114620/index.md)","id":"CVE-2026-114620","markdown":"https://insights.sbomify.com/CVE-2026-114620/index.md","name":"CVE-2026-114620","record":{"aliases":["DEBIAN-CVE-2026-114620","ECHO-567b-5cd2-78a6","GHSA-x4rv-c3wx-4cr8","MINI-jrqr-f4v2-r686","UBUNTU-CVE-2026-114620"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[{"product":"authlib","vendor":"authlib"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, Authlib's RFC 9101 JWTAuthenticationRequest passes the unauthenticated, client-controlled request_uri parameter to the abstract get_request_object() hook before applying a destination or registration policy; the hook itself performs no network request, while the documentation demonstrates an unrestricted HTTP fetch. In deployments whose integrator implements that hook as an unrestricted outbound fetch, a remote attacker who knows a valid public client identifier can make the authorization server request internal, link-local, or otherwise unintended URLs and can distinguish fetch outcomes through different error responses and timing. Deployments whose custom hook already applies a secure allowlist, destination controls, and retrieval limits are not affected. The JWTAuthenticationRequest implementation in authlib/oauth2/rfc9101/authorization_server.py forwards request_uri to get_request_object() before an application-approved retrieval policy accepts the destination. This issue is fixed in version 1.9.0.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Authlib: Unvalidated request_uri fetch in JWT-secured authorization request (JAR) leading to SSRF","id":"CVE-2026-114620","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":5,"next":{"headline":"baserCMS: SQL injection in the admin panel and admin API","id":"CVE-2026-114621"},"packages":[{"ecosystem":"PyPI","fixed":["1.9.0"],"introduced":["1.6.0"],"last_affected":[],"package":"authlib","purl":null,"source":"GHSA-x4rv-c3wx-4cr8"},{"ecosystem":"PyPI","fixed":["1.9.0"],"introduced":["1.6.0"],"last_affected":[],"package":"authlib","purl":"pkg:pypi/authlib","source":"GHSA-x4rv-c3wx-4cr8"}],"prev":{"headline":"Authlib: OpenID implicit grant checks raw scope instead of allowed scope before issuing ID tokens","id":"CVE-2026-114619"},"products":["authlib"],"published":"2026-10-22","related":[{"cvss_score":9.1,"headline":"Authlib JWS JWK Header Injection: Signature Verification Bypass","id":"CVE-2026-27962","kev_date_added":null,"published":"2026-03-16"},{"cvss_score":8.3,"headline":"Authlib Vulnerable to JWE RSA1_5 Bleichenbacher Padding Oracle","id":"CVE-2026-28490","kev_date_added":null,"published":"2026-03-16"},{"cvss_score":8.2,"headline":"Authlib: Fail-Open Cryptographic Verification in OIDC Hash Binding","id":"CVE-2026-28498","kev_date_added":null,"published":"2026-03-16"},{"cvss_score":7.7,"headline":"Authlib: Setting `alg: none` and a blank signature appears to bypass signature verification","id":"CVE-2026-28802","kev_date_added":null,"published":"2026-03-06"},{"cvss_score":7.5,"headline":"Authlib is vulnerable to Denial of Service via Oversized JOSE Segments","id":"CVE-2025-61920","kev_date_added":null,"published":"2025-10-10"},{"cvss_score":7.5,"headline":"Authlib: JWS/JWT accepts unknown crit headers (RFC violation → possible authz bypass)","id":"CVE-2025-59420","kev_date_added":null,"published":"2025-09-22"},{"cvss_score":7.5,"headline":"Authlib has algorithm confusion with asymmetric public keys","id":"CVE-2024-37568","kev_date_added":null,"published":"2024-06-09"}],"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":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-22","vendors":["authlib"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-114620/"}