{"answers":{"affected":"2 open source packages ship an affected version, including pocketmine/pocketmine-mp.","exploited":"There is no known exploitation of CVE-2020-37277 in the wild and no public exploit code.","fix":"Upgrade pocketmine/pocketmine-mp to 3.15.4 or later.","what":"CVE-2020-37277 is a high-severity denial of service vulnerability in pmmp PocketMine-MP, published on 6 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-37277 and fix it if it is affected.\n\nWhat it is: CVE-2020-37277 is a high-severity denial of service vulnerability in pmmp PocketMine-MP, published on 6 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-37277 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pocketmine/pocketmine-mp (Packagist): affected all versions; fixed in 3.15.4\n- pocketmine/pocketmine-mp (Packagist): affected all versions; fixed in 3.15.4\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-2020-37277/ (Markdown: https://insights.sbomify.com/CVE-2020-37277/index.md)","id":"CVE-2020-37277","markdown":"https://insights.sbomify.com/CVE-2020-37277/index.md","name":"CVE-2020-37277","record":{"aliases":["GHSA-8jq6-w5cg-wm45","GHSA-w7p4-2gxc-qg89"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Minecraft server software","requires_auth":"low_privilege","summary":"Malicious clients can crash PocketMine-MP servers by sending crafted inventory transaction packets that cause exponential processing complexity.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"PocketMine-MP versions before 3.15.4 contain a denial of service vulnerability in the InventoryTransaction component's findResultItem() method. Malicious clients can send specially crafted InventoryTransactionPackets with multiple conflicting pathways to cause exponential processing complexity, freezing the server.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"PocketMine-MP before 3.15.4 Denial of Service via InventoryTransaction","id":"CVE-2020-37277","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":2,"n_references":3,"next":{"headline":"Weaver e-Bridge Unauthenticated Arbitrary File Read via saveYZJFile","id":"CVE-2020-37278"},"packages":[{"ecosystem":"Packagist","fixed":["3.15.4"],"introduced":["0"],"last_affected":[],"package":"pocketmine/pocketmine-mp","purl":null,"source":"GHSA-8jq6-w5cg-wm45"},{"ecosystem":"Packagist","fixed":["3.15.4"],"introduced":["0"],"last_affected":[],"package":"pocketmine/pocketmine-mp","purl":"pkg:composer/pocketmine/pocketmine-mp","source":"GHSA-8jq6-w5cg-wm45"}],"prev":{"headline":"Coq and Rocq Prover Print Assumptions Omits Unsafe Universe Checking Inlined Through Parameter Inline","id":"CVE-2020-37268"},"products":["PocketMine-MP"],"published":"2026-09-06","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":"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":"2026-10-08","vendors":["pmmp"]},"summary":"Malicious clients can crash PocketMine-MP servers by sending crafted inventory transaction packets that cause exponential processing complexity.","url":"https://insights.sbomify.com/CVE-2020-37277/"}