{"answers":{"affected":"8 open source packages ship an affected version, including lodash, lodash-amd and lodash-es. It affects 4 products.","exploited":"There is no known exploitation of CVE-2026-2950 in the wild and no public exploit code.","fix":"Upgrade lodash to 4.18.0 or later.","what":"CVE-2026-2950 is a medium-severity vulnerability in lodash, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-2950 and fix it if it is affected.\n\nWhat it is: CVE-2026-2950 is a medium-severity vulnerability in lodash, published on 31 Mar 2026. 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-2026-2950 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- lodash (npm): affected all versions; fixed in 4.18.0\n- lodash (npm): affected all versions; fixed in 4.18.0\n- lodash-amd (npm): affected all versions; fixed in 4.18.0\n- lodash-amd (npm): affected all versions; fixed in 4.18.0\n- lodash-es (npm): affected all versions; fixed in 4.18.0\n- lodash-es (npm): affected all versions; fixed in 4.18.0\n- lodash.unset (npm): affected from 4.0.0; fixed in 4.18.0\n- lodash.unset (npm): affected from 4.0.0; fixed in 4.18.0\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-2026-2950/ (Markdown: https://insights.sbomify.com/CVE-2026-2950/index.md)","id":"CVE-2026-2950","markdown":"https://insights.sbomify.com/CVE-2026-2950/index.md","name":"CVE-2026-2950","record":{"aliases":["CLEANSTART-2026-WD42763","CLEANSTART-2026-XQ62650","CLSA-2026-1792102343","CLSA-2026-1792327052","CLSA-2026-1792762945","CLSA-2026-1792869761","DEBIAN-CVE-2026-2950","ECHO-447c-1909-d40b","GHSA-f23m-r3pf-42rh","MINI-2hr2-2wwq-rm26","MINI-3mwj-3f63-2hp5","MINI-3q82-mcpx-gwrh","MINI-3wg5-hf3j-vjjg","MINI-3wxc-4cr8-fwg7","MINI-57gf-7j38-qx3c","MINI-57x7-r4vh-5fc2","MINI-65x2-79x6-mfrw","MINI-67fw-588m-rv7h","MINI-6958-7248-rm39","MINI-6wrc-24wr-rg2m","MINI-77f5-gj27-fw42","MINI-8jw4-3pwp-pqvr","MINI-9rv9-2gvf-h2f8","MINI-f8gh-jfjr-4p2f","MINI-fxv3-36q6-vxj5","MINI-g8v6-j2rj-p9wg","MINI-g9j4-5qhf-5mp3","MINI-gc57-j87p-h33w","MINI-h67v-9fvj-jq65","MINI-h684-pcmv-2w5r","MINI-h9mr-22jh-c99c","MINI-hfh8-jg9j-w952","MINI-hqw4-cfwv-whmr","MINI-hrx2-pqc2-p9pm","MINI-j39x-jwr6-w9c2","MINI-jr3f-wfvm-72gq","MINI-p4mf-88q8-c44x","MINI-pvr6-379g-r3jc","MINI-pwv8-jxhq-6gg9","MINI-qh7q-rfff-36wm","MINI-rq9r-rcjj-3546","MINI-vfwp-vv6m-cwmv","MINI-w266-rpff-vrm7","MINI-w76c-4c4m-5m2f","MINI-x28w-fpff-3hx9","ROOT-APP-NPM-CVE-2026-2950","UBUNTU-CVE-2026-2950"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["other"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript utility library","requires_auth":"none","summary":"Attackers can delete properties from built-in prototypes via array path bypass in lodash unset and omit functions.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"openjs","cpe":[{"product":"lodash","vendor":"lodash"},{"product":"lodash-amd","vendor":"lodash"},{"product":"lodash-es","vendor":"lodash"},{"product":"lodash.unset","vendor":"lodash"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. The fix for CVE-2025-13465 only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows deletion of properties from built-in prototypes such as Object.prototype, Number.prototype, and String.prototype. The issue permits deletion of prototype properties but does not allow overwriting their original behavior. The issue is patched from 4.18.0 to 4.18.1 depending on the package: lodash, lodash-es, and lodash-amd in 4.18.1, and the standalone lodash.unset and lodash.omit packages in 4.18.0.","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":"lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`","id":"CVE-2026-2950","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"other","year":"2026"},"n_packages":8,"n_references":2,"next":{"headline":"Cross-site scripting in Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor","id":"CVE-2026-2951"},"packages":[{"ecosystem":"npm","fixed":["4.18.0"],"introduced":["0"],"last_affected":[],"package":"lodash","purl":null,"source":"GHSA-f23m-r3pf-42rh"},{"ecosystem":"npm","fixed":["4.18.0"],"introduced":["0"],"last_affected":[],"package":"lodash","purl":"pkg:npm/lodash","source":"GHSA-f23m-r3pf-42rh"},{"ecosystem":"npm","fixed":["4.18.0"],"introduced":["0"],"last_affected":[],"package":"lodash-amd","purl":null,"source":"GHSA-f23m-r3pf-42rh"},{"ecosystem":"npm","fixed":["4.18.0"],"introduced":["0"],"last_affected":[],"package":"lodash-amd","purl":"pkg:npm/lodash-amd","source":"GHSA-f23m-r3pf-42rh"},{"ecosystem":"npm","fixed":["4.18.0"],"introduced":["0"],"last_affected":[],"package":"lodash-es","purl":null,"source":"GHSA-f23m-r3pf-42rh"},{"ecosystem":"npm","fixed":["4.18.0"],"introduced":["0"],"last_affected":[],"package":"lodash-es","purl":"pkg:npm/lodash-es","source":"GHSA-f23m-r3pf-42rh"},{"ecosystem":"npm","fixed":["4.18.0"],"introduced":["4.0.0"],"last_affected":[],"package":"lodash.unset","purl":null,"source":"GHSA-f23m-r3pf-42rh"},{"ecosystem":"npm","fixed":["4.18.0"],"introduced":["4.0.0"],"last_affected":[],"package":"lodash.unset","purl":"pkg:npm/lodash.unset","source":"GHSA-f23m-r3pf-42rh"}],"prev":{"headline":"Cross-site scripting in Xpro Addons — 140+ Widgets for Elementor","id":"CVE-2026-2949"},"products":["lodash","lodash-amd","lodash-es","lodash.omit","lodash.unset"],"published":"2026-03-31","related":[{"cvss_score":8.1,"headline":"lodash vulnerable to Code Injection via `_.template` imports key names","id":"CVE-2026-4800","kev_date_added":null,"published":"2026-03-31"},{"cvss_score":7.4,"headline":"Prototype Pollution in lodash","id":"CVE-2020-8203","kev_date_added":null,"published":"2020-07-15"},{"cvss_score":7.2,"headline":"Command Injection","id":"CVE-2021-23337","kev_date_added":null,"published":"2021-02-15"},{"cvss_score":6.9,"headline":"Prototype Pollution Vulnerability in Lodash _.unset and _.omit functions","id":"CVE-2025-13465","kev_date_added":null,"published":"2026-01-21"},{"cvss_score":6.5,"headline":"Regular Expression Denial of Service (ReDoS) in lodash","id":"CVE-2019-1010266","kev_date_added":null,"published":"2019-07-17"},{"cvss_score":6.5,"headline":"Prototype Pollution in lodash","id":"CVE-2018-3721","kev_date_added":null,"published":"2018-06-07"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["lodash"]},"summary":"Attackers can delete properties from built-in prototypes via array path bypass in lodash unset and omit functions.","url":"https://insights.sbomify.com/CVE-2026-2950/"}