{"answers":{"affected":"2 open source packages ship an affected version, including pomelo. It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-18954 in the wild and no public exploit code.","fix":"Upgrade pomelo to 2.2.7 or later.","what":"CVE-2019-18954 is a medium-severity vulnerability in n/a, published on 13 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-18954 and fix it if it is affected.\n\nWhat it is: CVE-2019-18954 is a medium-severity vulnerability in n/a, published on 13 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-18954 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pomelo (npm): affected all versions; fixed in 2.2.7\n- pomelo (npm): affected all versions; fixed in 2.2.7\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-2019-18954/ (Markdown: https://insights.sbomify.com/CVE-2019-18954/index.md)","id":"CVE-2019-18954","markdown":"https://insights.sbomify.com/CVE-2019-18954/index.md","name":"CVE-2019-18954","record":{"aliases":["GHSA-4x6v-rwh4-55jw"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Pomelo game server","requires_auth":"none","summary":"Attackers can corrupt internal state and execute arbitrary code by overwriting critical attributes via malicious user input in Pomelo game servers.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"pomelo","vendor":"netease"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-668","name":"Exposure of Resource to Wrong Sphere"}],"description":"Pomelo v2.2.5 allows external control of critical state data. A malicious user input can corrupt arbitrary methods and attributes in template/game-server/app/servers/connector/handler/entryHandler.js because certain internal attributes can be overwritten via a conflicting name. Hence, a malicious attacker can manipulate internal attributes by adding additional attributes to user input.","ecosystems":["npm"],"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":"Pomelo allows external control of critical state data","id":"CVE-2019-18954","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"other","year":"2019"},"n_packages":2,"n_references":2,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2019-18955"},"packages":[{"ecosystem":"npm","fixed":["2.2.7"],"introduced":["0"],"last_affected":[],"package":"pomelo","purl":null,"source":"GHSA-4x6v-rwh4-55jw"},{"ecosystem":"npm","fixed":["2.2.7"],"introduced":["0"],"last_affected":[],"package":"pomelo","purl":"pkg:npm/pomelo","source":"GHSA-4x6v-rwh4-55jw"}],"prev":{"headline":"File upload in n/a","id":"CVE-2019-18952"},"products":["n/a"],"published":"2019-11-13","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can corrupt internal state and execute arbitrary code by overwriting critical attributes via malicious user input in Pomelo game servers.","url":"https://insights.sbomify.com/CVE-2019-18954/"}