{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-27370 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-27370 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-27370 is a medium-severity authentication bypass vulnerability in OpenID Connect, published on 3 Mar 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-27370 and fix it if it is affected.\n\nWhat it is: CVE-2025-27370 is a medium-severity authentication bypass vulnerability in OpenID Connect, published on 3 Mar 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2025-27370 in the wild and no public exploit code.\n\nAffected product: OpenID Connect. 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-2025-27370/ (Markdown: https://insights.sbomify.com/CVE-2025-27370/index.md)","id":"CVE-2025-27370","markdown":"https://insights.sbomify.com/CVE-2025-27370/index.md","name":"CVE-2025-27370","record":{"aliases":["GHSA-pcj4-9fcj-56c8"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"OpenID Connect Core","requires_auth":"none","summary":"A malicious Authorization Server can impersonate a Client by injecting attacker-controlled audience values when private_key_jwt authentication is used.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-305","name":"Authentication Bypass by Primary Weakness"}],"description":"OpenID Connect Core through 1.0 errata set 2 allows audience injection in certain situations. When the private_key_jwt authentication mechanism is used, a malicious Authorization Server could trick a Client into writing attacker-controlled values into the audience, including token endpoints or issuer identifiers of other Authorization Servers. The malicious Authorization Server could then use these private key JWTs to impersonate the Client.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Auth bypass in OpenID Connect","id":"CVE-2025-27370","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"In certain IETF OAuth 2.0-related specifications, when the JSON Web Token Profile for OAuth 2.0 Client Authentication mechanism is used, the","id":"CVE-2025-27371"},"packages":[],"prev":{"headline":"IBM OpenPages with Watson information disclosure","id":"CVE-2025-27369"},"products":["OpenID Connect"],"published":"2025-03-03","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-25","vendors":["OpenID"]},"summary":"A malicious Authorization Server can impersonate a Client by injecting attacker-controlled audience values when private_key_jwt authentication is used.","url":"https://insights.sbomify.com/CVE-2025-27370/"}