{"answers":{"affected":"2 open source packages ship an affected version, including com.networknt:light-oauth2. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-31580 exists.","fix":"Upgrade com.networknt:light-oauth2 to 2.1.27 or later.","what":"CVE-2023-31580 is a medium-severity authentication bypass vulnerability in n/a, published on 24 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-31580 and fix it if it is affected.\n\nWhat it is: CVE-2023-31580 is a medium-severity authentication bypass vulnerability in n/a, published on 24 Oct 2023. 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-2023-31580 exists.\n\nAffected packages and fixed versions:\n- com.networknt:light-oauth2 (Maven): affected all versions; fixed in 2.1.27\n- com.networknt:light-oauth2 (Maven): affected all versions; fixed in 2.1.27\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-2023-31580/ (Markdown: https://insights.sbomify.com/CVE-2023-31580/index.md)","id":"CVE-2023-31580","markdown":"https://insights.sbomify.com/CVE-2023-31580/index.md","name":"CVE-2023-31580","record":{"aliases":["GHSA-mx47-h5fv-ghwh"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Java OAuth2 library","requires_auth":"none","summary":"Attackers can bypass authentication and take over accounts by using crafted JWT tokens due to missing public key verification in the light-oauth2 library.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"light-oauth2","vendor":"networknt"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"light-oauth2 before version 2.1.27 obtains the public key without any verification. This could allow attackers to authenticate to the application with a crafted JWT token.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"light-oauth2 missing public key verification","id":"CVE-2023-31580","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"auth_bypass","year":"2023"},"n_packages":2,"n_references":2,"next":{"headline":"Sureness uses hardcoded key","id":"CVE-2023-31581"},"packages":[{"ecosystem":"Maven","fixed":["2.1.27"],"introduced":["0"],"last_affected":[],"package":"com.networknt:light-oauth2","purl":null,"source":"GHSA-mx47-h5fv-ghwh"},{"ecosystem":"Maven","fixed":["2.1.27"],"introduced":["0"],"last_affected":[],"package":"com.networknt:light-oauth2","purl":"pkg:maven/com.networknt/light-oauth2","source":"GHSA-mx47-h5fv-ghwh"}],"prev":{"headline":"Dromara Lamp-Cloud Use of Hard-coded Cryptographic Key","id":"CVE-2023-31579"},"products":["n/a"],"published":"2023-10-24","related":[],"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-09-17","vendors":["n/a"]},"summary":"Attackers can bypass authentication and take over accounts by using crafted JWT tokens due to missing public key verification in the light-oauth2 library.","url":"https://insights.sbomify.com/CVE-2023-31580/"}