{"answers":{"affected":"2 open source packages ship an affected version, including Authlib and authlib. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-114616 in the wild and no public exploit code.","fix":"Upgrade Authlib to 1.9.1 or later.","what":"CVE-2026-114616 is a high-severity vulnerability in authlib, published on 22 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-114616 and fix it if it is affected.\n\nWhat it is: CVE-2026-114616 is a high-severity vulnerability in authlib, published on 22 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-114616 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Authlib (PyPI): affected all versions; fixed in 1.9.1\n- authlib (PyPI): affected all versions; fixed in 1.9.1\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-2026-114616/ (Markdown: https://insights.sbomify.com/CVE-2026-114616/index.md)","id":"CVE-2026-114616","markdown":"https://insights.sbomify.com/CVE-2026-114616/index.md","name":"CVE-2026-114616","record":{"aliases":["DEBIAN-CVE-2026-114616","ECHO-9a12-6f46-0481","GHSA-8m4g-j4wp-wgcg","MINI-vfp6-7m3r-grpf","UBUNTU-CVE-2026-114616"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[{"product":"authlib","vendor":"authlib"}],"cvss":{"score":7.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-326","name":"Inadequate Encryption Strength"},{"id":"CWE-287","name":"Improper Authentication"},{"id":"CWE-1391","name":"Use of Weak Credentials"}],"description":"Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.1, Authlib's OctKey.import_key() and HMAC signing and verification path accept zero-length key material. If an application's secret lookup can return an empty string or empty bytes, a remote attacker can compute the deterministic HS256, HS384, or HS512 signature for arbitrary token claims and have Authlib treat the token as authentic. This issue is fixed in version 1.9.1.","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 accepts an empty HMAC key, allowing JWS/JWT signature forgery (HS256/HS384/HS512)","id":"CVE-2026-114616","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"Authlib: ID token can disable its own nonce validation via the nonce_supported claim","id":"CVE-2026-114617"},"packages":[{"ecosystem":"PyPI","fixed":["1.9.1"],"introduced":["0"],"last_affected":[],"package":"Authlib","purl":null,"source":"GHSA-8m4g-j4wp-wgcg"},{"ecosystem":"PyPI","fixed":["1.9.1"],"introduced":["0"],"last_affected":[],"package":"authlib","purl":"pkg:pypi/authlib","source":"GHSA-8m4g-j4wp-wgcg"}],"prev":{"headline":"Authlib incomplete algorithm-confusion fix permits HMAC forgery with prefixed public keys","id":"CVE-2026-114615"},"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-2026-114616/"}