{"answers":{"affected":"2 open source packages ship an affected version, including typeorm. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-8158 in the wild and no public exploit code.","fix":"Upgrade typeorm to 0.2.25 or later.","what":"CVE-2020-8158 is a critical vulnerability in typeorm, published on 18 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8158 and fix it if it is affected.\n\nWhat it is: CVE-2020-8158 is a critical vulnerability in typeorm, published on 18 Sep 2020. 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-2020-8158 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- typeorm (npm): affected all versions; fixed in 0.2.25\n- typeorm (npm): affected all versions; fixed in 0.2.25\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-2020-8158/ (Markdown: https://insights.sbomify.com/CVE-2020-8158/index.md)","id":"CVE-2020-8158","markdown":"https://insights.sbomify.com/CVE-2020-8158/index.md","name":"CVE-2020-8158","record":{"aliases":["GHSA-pf2j-9qmp-jqr2"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"TypeORM library","requires_auth":"none","summary":"Prototype pollution in TypeORM allows attackers to modify object properties, potentially leading to denial of service or SQL injection.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"typeorm","vendor":"typeorm"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"},{"id":"CWE-471","name":"Modification of Assumed-Immutable Data (MAID)"}],"description":"Prototype pollution vulnerability in the TypeORM package \u003c 0.2.25 may allow attackers to add or modify Object properties leading to further denial of service or SQL injection attacks.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":"2025-12-08","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-12-08T08:18:42Z","kind":"github_poc","ref":"https://github.com/open-flaw/CVE-2020-8158","stars":0,"title":"This is a proof-of-concept demonstrating CVE-2020-8158, a critical prototype pollution vulnerability in TypeORM versions \u003c 0.2.25."}],"tier":"poc_unverified"},"has_fix":true,"headline":"TypeORM vulnerable to MAID and Prototype Pollution","id":"CVE-2020-8158","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"other","year":"2020"},"n_packages":2,"n_references":1,"next":{"headline":"Arbitrary file write in actionpack-page_caching gem","id":"CVE-2020-8159"},"packages":[{"ecosystem":"npm","fixed":["0.2.25"],"introduced":["0"],"last_affected":[],"package":"typeorm","purl":null,"source":"GHSA-pf2j-9qmp-jqr2"},{"ecosystem":"npm","fixed":["0.2.25"],"introduced":["0"],"last_affected":[],"package":"typeorm","purl":"pkg:npm/typeorm","source":"GHSA-pf2j-9qmp-jqr2"}],"prev":{"headline":"Auth bypass in UniFi Cloud Key Gen2, Cloud Key Gen2 plus","id":"CVE-2020-8157"},"products":["typeorm"],"published":"2020-09-18","related":[{"cvss_score":9.8,"headline":"SQL injection in typeORM","id":"CVE-2022-33171","kev_date_added":null,"published":"2022-07-04"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Prototype pollution in TypeORM allows attackers to modify object properties, potentially leading to denial of service or SQL injection.","url":"https://insights.sbomify.com/CVE-2020-8158/"}