{"answers":{"affected":"2 open source packages ship an affected version, including serialize-javascript. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-34043 in the wild and no public exploit code.","fix":"Upgrade serialize-javascript to 7.0.5 or later.","what":"CVE-2026-34043 is a medium-severity denial of service vulnerability in yahoo serialize-javascript, 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-2026-34043 and fix it if it is affected.\n\nWhat it is: CVE-2026-34043 is a medium-severity denial of service vulnerability in yahoo serialize-javascript, 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-2026-34043 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- serialize-javascript (npm): affected from 5.0.0; fixed in 7.0.5\n- serialize-javascript (npm): affected from 5.0.0; fixed in 7.0.5\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-2026-34043/ (Markdown: https://insights.sbomify.com/CVE-2026-34043/index.md)","id":"CVE-2026-34043","markdown":"https://insights.sbomify.com/CVE-2026-34043/index.md","name":"CVE-2026-34043","record":{"aliases":["CLEANSTART-2026-EZ44935","CLEANSTART-2026-GV24243","CLEANSTART-2026-OD19905","CLSA-2026-1776645371","CLSA-2026-1776645372","DEBIAN-CVE-2026-34043","GHSA-qj8w-gfj5-8c6v","MINI-6g5g-23xw-jfpv","MINI-96xg-4mmg-4mmx","MINI-9xx2-j2x5-9fq8","MINI-c465-hpww-q2qj","MINI-j745-w622-9r4r","MINI-v768-22g8-6xxp","MINI-x9cq-3qc8-pc8c","ROOT-APP-NPM-CVE-2026-34043","UBUNTU-CVE-2026-34043"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript serialization library","requires_auth":"none","summary":"Attackers can cause CPU exhaustion and service hang by passing crafted array-like objects to the serialize-javascript library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"serialize","vendor":"yahoo"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-834","name":"Excessive Iteration"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted \"array-like\" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.","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":"Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects","id":"CVE-2026-34043","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"Coolify: Cross-team IDOR in logs component (resource lookup not team-scoped)","id":"CVE-2026-34044"},"packages":[{"ecosystem":"npm","fixed":["7.0.5"],"introduced":["5.0.0"],"last_affected":[],"package":"serialize-javascript","purl":null,"source":"GHSA-qj8w-gfj5-8c6v"},{"ecosystem":"npm","fixed":["7.0.5"],"introduced":["5.0.0"],"last_affected":[],"package":"serialize-javascript","purl":"pkg:npm/serialize-javascript","source":"GHSA-qj8w-gfj5-8c6v"}],"prev":{"headline":"act: actions/cache server allows malicious cache injection","id":"CVE-2026-34042"},"products":["serialize-javascript"],"published":"2026-03-31","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":"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-31","vendors":["yahoo"]},"summary":"Attackers can cause CPU exhaustion and service hang by passing crafted array-like objects to the serialize-javascript library.","url":"https://insights.sbomify.com/CVE-2026-34043/"}