{"answers":{"affected":"2 open source packages ship an affected version, including stream-json.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-71429 exists.","fix":"Upgrade stream-json to 3.5.0 or later.","what":"CVE-2026-71429 is a medium-severity denial of service vulnerability in uhop stream-json, published on 3 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-71429 and fix it if it is affected.\n\nWhat it is: CVE-2026-71429 is a medium-severity denial of service vulnerability in uhop stream-json, published on 3 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-71429 exists.\n\nAffected packages and fixed versions:\n- stream-json (npm): affected all versions; fixed in 3.5.0\n- stream-json (npm): affected all versions; fixed in 3.5.0\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-2026-71429/ (Markdown: https://insights.sbomify.com/CVE-2026-71429/index.md)","id":"CVE-2026-71429","markdown":"https://insights.sbomify.com/CVE-2026-71429/index.md","name":"CVE-2026-71429","record":{"aliases":["CLEANSTART-2026-AK31970","CLSA-2026-1790541875","GHSA-528h-pc64-c93x"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Node.js JSON library","requires_auth":"none","summary":"Attackers can cause denial of service in applications using stream-json by sending deeply nested JSON, blocking the event loop due to inefficient path filtering.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.2,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-407","name":"Inefficient Algorithmic Complexity"}],"description":"stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. Prior to 3.5.0, the path filters pick, ignore, filter, and replace in src/core/filters/filter-base.js recompute the full path string from the nesting stack for every checkable token. Because the stack length equals the current nesting depth and a checkable token is emitted at every level, a depth D document costs O(D²) rather than O(D) to process. The issue is triggered by nesting depth rather than byte volume, including the documented pick({filter: 'data'}) traversal-until-match path, so an application that sends untrusted JSON through a string or RegExp filter can block the Node.js event loop and cause denial of service with a small deeply nested document. The streamArray, streamObject, and streamValues streamers are not affected because they use the constant-time asm.depth getter. This issue is fixed in version 3.5.0.","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":"stream-json: pick/ignore/filter/replace filters are O(depth²) on nested input — small crafted JSON blocks the event loop for seconds→minutes (DoS)","id":"CVE-2026-71429","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"node-re2: String.prototype.replace(re2, template) aborts the Node process (uncatchable ToLocalChecked on empty MaybeLocal) when the result exceeds V8's max string length","id":"CVE-2026-71430"},"packages":[{"ecosystem":"npm","fixed":["3.5.0"],"introduced":["0"],"last_affected":[],"package":"stream-json","purl":null,"source":"GHSA-528h-pc64-c93x"},{"ecosystem":"npm","fixed":["3.5.0"],"introduced":["0"],"last_affected":[],"package":"stream-json","purl":"pkg:npm/stream-json","source":"GHSA-528h-pc64-c93x"}],"prev":{"headline":"unstructured: Server-Side Request Forgery in the URL-based partitioning","id":"CVE-2026-71428"},"products":["stream-json"],"published":"2026-09-03","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-04","vendors":["uhop"]},"summary":"Attackers can cause denial of service in applications using stream-json by sending deeply nested JSON, blocking the event loop due to inefficient path filtering.","url":"https://insights.sbomify.com/CVE-2026-71429/"}