{"answers":{"affected":"4 open source packages ship an affected version, including protobufjs. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-45740 in the wild and no public exploit code.","fix":"Upgrade protobufjs to a fixed version for your release line: 7.5.8 or 8.2.0.","what":"CVE-2026-45740 is a medium-severity denial of service vulnerability in protobufjs protobuf.js, published on 13 May 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-2026-45740 and fix it if it is affected.\n\nWhat it is: CVE-2026-45740 is a medium-severity denial of service vulnerability in protobufjs protobuf.js, published on 13 May 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-2026-45740 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- protobufjs (npm): affected all versions; fixed in 7.5.8\n- protobufjs (npm): affected all versions; fixed in 7.5.8\n- protobufjs (npm): affected from 8.0.0; fixed in 8.2.0\n- protobufjs (npm): affected from 8.0.0; fixed in 8.2.0\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-2026-45740/ (Markdown: https://insights.sbomify.com/CVE-2026-45740/index.md)","id":"CVE-2026-45740","markdown":"https://insights.sbomify.com/CVE-2026-45740/index.md","name":"CVE-2026-45740","record":{"aliases":["CLEANSTART-2026-AZ83054","CLEANSTART-2026-RU46318","ECHO-5c56-1b39-01b7","GHSA-jggg-4jg4-v7c6","MINI-2wv4-prc5-87pw","MINI-3pff-62pv-rvr5","MINI-8978-5v2h-w5w8","MINI-8wfm-g37r-wcj5","MINI-gmr7-qg79-3r89","MINI-gxq9-5322-hx25","MINI-h5wp-4xjp-h9m6","MINI-p47g-q6h6-q4p3","MINI-pc7j-v4gv-xr6q","MINI-qh42-fq7w-582v","MINI-qph8-w73v-5j22","MINI-r622-vc5x-v4x9","MINI-rg84-wx5g-m55w","MINI-rj77-hxq9-8xv2","MINI-vcg5-qfxh-34q2","MINI-x2fh-q35v-7c79","ROOT-APP-NPM-CVE-2026-45740"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript protobuf library","requires_auth":"none","summary":"Attackers can cause denial of service in applications using protobufjs by supplying deeply nested JSON descriptors that exhaust the call stack.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"protobufjs","vendor":"protobufjs_project"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"}],"description":"protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.8 and 8.2.0, protobufjs could recurse without a depth limit while expanding nested JSON descriptors through Root.fromJSON() and Namespace.addJSON(). A crafted JSON descriptor with deeply nested namespace definitions could cause the JavaScript call stack to be exhausted during descriptor loading. This vulnerability is fixed in 7.5.8 and 8.2.0.","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":"protobufjs: Denial of Service via unbounded recursive JSON descriptor expansion","id":"CVE-2026-45740","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"Gotenberg: SSRF deny-list bypass in IsPublicIP via IPv6 6to4 / NAT64 / site-local prefixes","id":"CVE-2026-45741"},"packages":[{"ecosystem":"npm","fixed":["7.5.8"],"introduced":["0"],"last_affected":[],"package":"protobufjs","purl":null,"source":"GHSA-jggg-4jg4-v7c6"},{"ecosystem":"npm","fixed":["7.5.8"],"introduced":["0"],"last_affected":[],"package":"protobufjs","purl":"pkg:npm/protobufjs","source":"GHSA-jggg-4jg4-v7c6"},{"ecosystem":"npm","fixed":["8.2.0"],"introduced":["8.0.0"],"last_affected":[],"package":"protobufjs","purl":null,"source":"GHSA-jggg-4jg4-v7c6"},{"ecosystem":"npm","fixed":["8.2.0"],"introduced":["8.0.0"],"last_affected":[],"package":"protobufjs","purl":"pkg:npm/protobufjs","source":"GHSA-jggg-4jg4-v7c6"}],"prev":{"headline":"Strawberry GraphQL: Default GraphiQL may expose HTTP headers in URLs","id":"CVE-2026-45739"},"products":["protobuf.js"],"published":"2026-05-13","related":[{"cvss_score":9.8,"headline":"protobufjs Prototype Pollution vulnerability","id":"CVE-2023-36665","kev_date_added":null,"published":"2023-07-05"},{"cvss_score":9.4,"headline":"protobufjs has an arbitrary code execution issue","id":"CVE-2026-41242","kev_date_added":null,"published":"2026-04-18"},{"cvss_score":8.2,"headline":"Prototype Pollution","id":"CVE-2022-25878","kev_date_added":null,"published":"2022-05-27"},{"cvss_score":8.1,"headline":"protobufjs: Code generation gadget after prototype pollution","id":"CVE-2026-44291","kev_date_added":null,"published":"2026-05-13"},{"cvss_score":7.7,"headline":"protobufjs: Code injection through bytes field defaults in generated toObject code","id":"CVE-2026-44293","kev_date_added":null,"published":"2026-05-13"},{"cvss_score":7.5,"headline":"protobufjs: Denial of service through unbounded Any expansion during JSON conversion","id":"CVE-2026-48712","kev_date_added":null,"published":"2026-06-22"},{"cvss_score":7.5,"headline":"protobufjs: Denial of service through unbounded protobuf recursion","id":"CVE-2026-44289","kev_date_added":null,"published":"2026-05-13"}],"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":"2026-05-13","vendors":["protobufjs"]},"summary":"Attackers can cause denial of service in applications using protobufjs by supplying deeply nested JSON descriptors that exhaust the call stack.","url":"https://insights.sbomify.com/CVE-2026-45740/"}