{"answers":{"affected":"1 open source package ship an affected version, including ueberauth_apple.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55954 exists.","fix":"Upgrade ueberauth_apple to 0.6.2 or later.","what":"CVE-2026-55954 is a critical authentication bypass vulnerability in ueberauth_apple, published on 14 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-2026-55954 and fix it if it is affected.\n\nWhat it is: CVE-2026-55954 is a critical authentication bypass vulnerability in ueberauth_apple, published on 14 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-2026-55954 exists.\n\nAffected packages and fixed versions:\n- ueberauth_apple (Hex): affected from 0.1.0; fixed in 0.6.2\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-2026-55954/ (Markdown: https://insights.sbomify.com/CVE-2026-55954/index.md)","id":"CVE-2026-55954","markdown":"https://insights.sbomify.com/CVE-2026-55954/index.md","name":"CVE-2026-55954","record":{"aliases":["EEF-CVE-2026-55954","GHSA-pxx8-68pc-p9mr"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Elixir authentication library","requires_auth":"none","summary":"Attackers can hijack user accounts by replaying unvalidated Apple ID tokens due to missing claim checks in the ueberauth_apple library.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"EEF","cpe":[],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"Authentication Bypass by Spoofing vulnerability in ueberauth ueberauth_apple allows account takeover via unvalidated ID token claims.\n\nThe Ueberauth.Strategy.Apple.Token.payload/2 function verifies the JWT signature of the callback id_token against Apple's JWKS but does not validate any registered claims. The iss, aud, exp, and iat claims are read from the token and passed on to Ueberauth.Strategy.Apple.handle_callback!/1, which derives the logged-in user's uid and email directly from the unvalidated sub claim.\n\nAn attacker who obtains any Apple-signed ID token bearing the victim's sub (via a captured expired token, or via an ID token issued to a sibling client in the same Apple developer team) can replay it against the vulnerable callback and be authenticated as the victim. The absent exp check makes stolen tokens usable indefinitely, and the absent aud check enables cross-application account takeover across clients that share an Apple developer team.\n\nThis issue affects ueberauth_apple: from 0.1.0 before 0.6.2.","ecosystems":["Hex"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Missing ID token claim validation in ueberauth_apple allows account takeover","id":"CVE-2026-55954","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Hex","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":1,"n_references":4,"next":{"headline":"Apache Tomcat: EncryptInterceptor not protected against replay attacks","id":"CVE-2026-55955"},"packages":[{"ecosystem":"Hex","fixed":["0.6.2"],"introduced":["0.1.0"],"last_affected":[],"package":"ueberauth_apple","purl":"pkg:hex/ueberauth_apple","source":"EEF-CVE-2026-55954"}],"prev":{"headline":"TLS 1.2 and DTLS client accepts unoffered anonymous cipher suite, bypassing server authentication","id":"CVE-2026-55953"},"products":["ueberauth_apple"],"published":"2026-07-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Erlang Ecosystem Foundation","prefix":"EEF"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["ueberauth"]},"summary":"Attackers can hijack user accounts by replaying unvalidated Apple ID tokens due to missing claim checks in the ueberauth_apple library.","url":"https://insights.sbomify.com/CVE-2026-55954/"}