{"answers":{"affected":"2 open source packages ship an affected version, including baseline-browser-mapping.","exploited":"There is no known exploitation of CVE-2026-45819 in the wild and no public exploit code.","fix":"Upgrade baseline-browser-mapping to 2.11.0 or later.","what":"CVE-2026-45819 is a medium-severity denial of service vulnerability in web-platform-dx baseline-browser-mapping, published on 13 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-2026-45819 and fix it if it is affected.\n\nWhat it is: CVE-2026-45819 is a medium-severity denial of service vulnerability in web-platform-dx baseline-browser-mapping, published on 13 Aug 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-2026-45819 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- baseline-browser-mapping (npm): affected from 2.0.0; fixed in 2.11.0\n- baseline-browser-mapping (npm): affected from 2.0.0; fixed in 2.11.0\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-2026-45819/ (Markdown: https://insights.sbomify.com/CVE-2026-45819/index.md)","id":"CVE-2026-45819","markdown":"https://insights.sbomify.com/CVE-2026-45819/index.md","name":"CVE-2026-45819","record":{"aliases":["CLEANSTART-2026-GC84062","CLEANSTART-2026-YT00725","CLSA-2026-1791198699","CLSA-2026-1791282757","CLSA-2026-1792163954","ECHO-04fe-7dc0-9e7c","GHSA-w5vr-8v7q-w6rv","MINI-2j3h-c23f-gffj","MINI-2x3g-7cgc-fg5x","MINI-68v3-m58r-x2q6","MINI-88fw-g6rv-f47v","MINI-c5p4-4p4p-49vm","MINI-gr9m-859x-25r9","MINI-hvxw-w39j-cp9p","MINI-jg58-8qfm-524v","MINI-mj4v-62wf-hx4f","MINI-mmfg-g4xr-2q84","MINI-rg79-vf5g-cxf8","MINI-v87r-x9vp-gm4p","MINI-vwc3-8326-xfr7","MINI-wgqg-83fj-vxgh","MINI-wp4c-q3ff-q978","MINI-xxm9-j2fj-v6hj"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"npm browser mapping library","requires_auth":"none","summary":"An attacker can cause immediate process termination and denial of service by providing invalid or conflicting input parameters to the baseline-browser-mapping library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"seal","cpe":[],"cvss":{"score":6.6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber","version":"4.0"},"cwes":[{"id":"CWE-755","name":"Improper Handling of Exceptional Conditions"},{"id":"CWE-705","name":"Incorrect Control Flow Scoping"}],"description":"baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.","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":"baseline-browser-mapping process termination on invalid input causes denial of service","id":"CVE-2026-45819","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":"fflate unzipSync can enter an infinite loop when parsing malformed ZIP64 archives","id":"CVE-2026-45820"},"packages":[{"ecosystem":"npm","fixed":["2.11.0"],"introduced":["2.0.0"],"last_affected":[],"package":"baseline-browser-mapping","purl":null,"source":"GHSA-w5vr-8v7q-w6rv"},{"ecosystem":"npm","fixed":["2.11.0"],"introduced":["2.0.0"],"last_affected":[],"package":"baseline-browser-mapping","purl":"pkg:npm/baseline-browser-mapping","source":"GHSA-w5vr-8v7q-w6rv"}],"prev":{"headline":"Apache NimBLE: NULL pointer dereference vulnerability in SMP LTK request","id":"CVE-2026-45816"},"products":["baseline-browser-mapping"],"published":"2026-08-13","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-13","vendors":["web-platform-dx"]},"summary":"An attacker can cause immediate process termination and denial of service by providing invalid or conflicting input parameters to the baseline-browser-mapping library.","url":"https://insights.sbomify.com/CVE-2026-45819/"}