{"answers":{"affected":"4 open source packages ship an affected version, including jsonata.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-77413 exists.","fix":"Upgrade jsonata to a fixed version for your release line: 1.8.8 or 2.2.0.","what":"CVE-2026-77413 is a critical code injection vulnerability in jsonata-js jsonata, published on 21 Aug 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-2026-77413 and fix it if it is affected.\n\nWhat it is: CVE-2026-77413 is a critical code injection vulnerability in jsonata-js jsonata, published on 21 Aug 2026. 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-2026-77413 exists.\n\nAffected packages and fixed versions:\n- jsonata (npm): affected all versions; fixed in 1.8.8\n- jsonata (npm): affected all versions; fixed in 1.8.8\n- jsonata (npm): affected from 2.0.0; fixed in 2.2.0\n- jsonata (npm): affected from 2.0.0; fixed in 2.2.0\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-2026-77413/ (Markdown: https://insights.sbomify.com/CVE-2026-77413/index.md)","id":"CVE-2026-77413","markdown":"https://insights.sbomify.com/CVE-2026-77413/index.md","name":"CVE-2026-77413","record":{"aliases":["CLEANSTART-2026-AP70361","GHSA-8gq3-vp5j-2grp","MINI-4cf8-4rv5-wh6j","MINI-fjxx-xhj4-pqxh","MINI-v6f8-rv6m-xvff"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"JSONata query library","requires_auth":"none","summary":"Attackers can execute arbitrary code by supplying crafted JSONata expressions that exploit prototype pollution in the lookup function.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"JSONata is a JSON query and transformation language. Prior to 1.8.8 and 2.2.0, the src/functions.js lookup function lacked an Object.prototype.hasOwnProperty check and allowed crafted expressions to access inherited prototype members. An attacker able to supply an expression could use inherited prototype setters and getters, constructor access, valueOf, and process.getBuiltinModule to reach the child_process module and execute arbitrary code with the privileges of the host process. This issue is fixed in versions 1.8.8 and 2.2.0.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"JSONata: Arbitrary Code Execution via crafted JSONata expressions","id":"CVE-2026-77413","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":4,"n_references":6,"next":{"headline":"JSONata: Arbitrary Code Execution via crafted JSONata expressions","id":"CVE-2026-77414"},"packages":[{"ecosystem":"npm","fixed":["1.8.8"],"introduced":["0"],"last_affected":[],"package":"jsonata","purl":null,"source":"GHSA-8gq3-vp5j-2grp"},{"ecosystem":"npm","fixed":["1.8.8"],"introduced":["0"],"last_affected":[],"package":"jsonata","purl":"pkg:npm/jsonata","source":"GHSA-8gq3-vp5j-2grp"},{"ecosystem":"npm","fixed":["2.2.0"],"introduced":["2.0.0"],"last_affected":[],"package":"jsonata","purl":null,"source":"GHSA-8gq3-vp5j-2grp"},{"ecosystem":"npm","fixed":["2.2.0"],"introduced":["2.0.0"],"last_affected":[],"package":"jsonata","purl":"pkg:npm/jsonata","source":"GHSA-8gq3-vp5j-2grp"}],"prev":{"headline":"RabbitMQ amqp091-go: Denial of Service via Malicious Field Length in AMQP Client","id":"CVE-2026-77412"},"products":["jsonata"],"published":"2026-08-21","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":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-24","vendors":["jsonata-js"]},"summary":"Attackers can execute arbitrary code by supplying crafted JSONata expressions that exploit prototype pollution in the lookup function.","url":"https://insights.sbomify.com/CVE-2026-77413/"}