{"answers":{"affected":"2 open source packages ship an affected version, including elysia. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-30837 in the wild and no public exploit code.","fix":"Upgrade elysia to 1.4.26 or later.","what":"CVE-2026-30837 is a high-severity denial of service vulnerability in elysiajs elysia, published on 10 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-2026-30837 and fix it if it is affected.\n\nWhat it is: CVE-2026-30837 is a high-severity denial of service vulnerability in elysiajs elysia, published on 10 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-2026-30837 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- elysia (npm): affected all versions; fixed in 1.4.26\n- elysia (npm): affected all versions; fixed in 1.4.26\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-2026-30837/ (Markdown: https://insights.sbomify.com/CVE-2026-30837/index.md)","id":"CVE-2026-30837","markdown":"https://insights.sbomify.com/CVE-2026-30837/index.md","name":"CVE-2026-30837","record":{"aliases":["GHSA-f45g-68q3-5w8x"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"TypeScript web framework","requires_auth":"none","summary":"Attackers can cause denial of service in Elysia applications by sending crafted URLs that trigger excessive CPU usage in the URL validation regex.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"elysia","vendor":"elysiajs"}],"cvss":{"score":7.5,"severity":"high","source":"cna","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-1333","name":"Inefficient Regular Expression Complexity"}],"description":"Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation and client-server communication. Prior to 1.4.26 , t.String({ format: 'url' }) is vulnerable to ReDoS. Repeating a partial url format (protocol and hostname) multiple times cause regex to slow down significantly. This vulnerability is fixed in 1.4.26.","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":"Elysia has a string URL format redos","id":"CVE-2026-30837","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":"league/commonmark: DisallowedRawHtml extension bypass via whitespace in HTML tag names","id":"CVE-2026-30838"},"packages":[{"ecosystem":"npm","fixed":["1.4.26"],"introduced":["0"],"last_affected":[],"package":"elysia","purl":null,"source":"GHSA-f45g-68q3-5w8x"},{"ecosystem":"npm","fixed":["1.4.26"],"introduced":["0"],"last_affected":[],"package":"elysia","purl":"pkg:npm/elysia","source":"GHSA-f45g-68q3-5w8x"}],"prev":{"headline":"Step CA: Unauthenticated Certificate Issuance via SCEP UpdateReq (MessageType=18)","id":"CVE-2026-30836"},"products":["elysia"],"published":"2026-03-10","related":[{"cvss_score":9.1,"headline":"Elysia vulnerable to prototype pollution with multiple standalone schema validation","id":"CVE-2025-66456","kev_date_added":null,"published":"2025-12-09"},{"cvss_score":7.5,"headline":"Elysia affected by arbitrary code injection through cookie config","id":"CVE-2025-66457","kev_date_added":null,"published":"2025-12-09"},{"cvss_score":6.5,"headline":"Elysia Cookie Value Prototype Pollution","id":"CVE-2026-31865","kev_date_added":null,"published":"2026-03-18"}],"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":"2026-03-11","vendors":["elysiajs"]},"summary":"Attackers can cause denial of service in Elysia applications by sending crafted URLs that trigger excessive CPU usage in the URL validation regex.","url":"https://insights.sbomify.com/CVE-2026-30837/"}