{"answers":{"affected":"2 open source packages ship an affected version, including messageformat. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-57349 in the wild and no public exploit code.","fix":"Upgrade messageformat to 3.0.0-beta.0 or later.","what":"CVE-2025-57349 is a high-severity vulnerability in n/a, published on 24 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-57349 and fix it if it is affected.\n\nWhat it is: CVE-2025-57349 is a high-severity vulnerability in n/a, published on 24 Sep 2025. 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-2025-57349 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- messageformat (npm): affected all versions; fixed in 3.0.0-beta.0\n- messageformat (npm): affected all versions; fixed in 3.0.0-beta.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-2025-57349/ (Markdown: https://insights.sbomify.com/CVE-2025-57349/index.md)","id":"CVE-2025-57349","markdown":"https://insights.sbomify.com/CVE-2025-57349/index.md","name":"CVE-2025-57349","record":{"aliases":["GHSA-xfqm-j7pc-xrfc"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","other"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript messageformat library","requires_auth":"none","summary":"Remote attackers can cause denial of service or undefined behavior via prototype pollution in the messageformat JavaScript library.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"messageformat","vendor":"openjsf"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"The messageformat package, an implementation of the Unicode MessageFormat 2 specification for JavaScript, is vulnerable to prototype pollution due to improper handling of message key paths in versions prior to 2.3.0. The flaw arises when processing nested message keys containing special characters (e.g., __proto__ ), which can lead to unintended modification of the JavaScript Object prototype. This vulnerability may allow a remote attacker to inject properties into the global object prototype via specially crafted message input, potentially causing denial of service or other undefined behaviors in applications using the affected component.","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":"messageformat has a prototype pollution vulnerability","id":"CVE-2025-57349","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"other","year":"2025"},"n_packages":2,"n_references":1,"next":{"headline":"CSVTOJSON has a prototype pollution vulnerability","id":"CVE-2025-57350"},"packages":[{"ecosystem":"npm","fixed":["3.0.0-beta.0"],"introduced":["0"],"last_affected":[],"package":"messageformat","purl":null,"source":"GHSA-xfqm-j7pc-xrfc"},{"ecosystem":"npm","fixed":["3.0.0-beta.0"],"introduced":["0"],"last_affected":[],"package":"messageformat","purl":"pkg:npm/messageformat","source":"GHSA-xfqm-j7pc-xrfc"}],"prev":{"headline":"node-cube vulnerable to prototype pollution","id":"CVE-2025-57348"},"products":["n/a"],"published":"2025-09-24","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-09-29","vendors":["n/a"]},"summary":"Remote attackers can cause denial of service or undefined behavior via prototype pollution in the messageformat JavaScript library.","url":"https://insights.sbomify.com/CVE-2025-57349/"}