{"answers":{"affected":"2 open source packages ship an affected version, including dio. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-31402 in the wild and no public exploit code.","fix":"Upgrade dio to 5.0.0 or later.","what":"CVE-2021-31402 is a high-severity vulnerability in n/a, published on 15 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-31402 and fix it if it is affected.\n\nWhat it is: CVE-2021-31402 is a high-severity vulnerability in n/a, published on 15 Apr 2021. 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-2021-31402 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- dio (Pub): affected all versions; fixed in 5.0.0\n- dio (Pub): affected all versions; fixed in 5.0.0\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-2021-31402/ (Markdown: https://insights.sbomify.com/CVE-2021-31402/index.md)","id":"CVE-2021-31402","markdown":"https://insights.sbomify.com/CVE-2021-31402/index.md","name":"CVE-2021-31402","record":{"aliases":["GHSA-9324-jv53-9cc8"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Dart HTTP client","requires_auth":"none","summary":"Attackers can inject CRLF characters into HTTP requests via the method string in the Dart dio package, potentially altering request structure.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"dio","vendor":"flutterchina"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"The dio package 4.0.0 for Dart allows CRLF injection if the attacker controls the HTTP method string, a different vulnerability than CVE-2020-35669.","ecosystems":["Pub"],"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":"dio vulnerable to CRLF injection with HTTP method string","id":"CVE-2021-31402","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2021"},"n_packages":2,"n_references":1,"next":{"headline":"Timing side channel vulnerability in UIDL request handler in Vaadin 7 and 8","id":"CVE-2021-31403"},"packages":[{"ecosystem":"Pub","fixed":["5.0.0"],"introduced":["0"],"last_affected":[],"package":"dio","purl":null,"source":"GHSA-9324-jv53-9cc8"},{"ecosystem":"Pub","fixed":["5.0.0"],"introduced":["0"],"last_affected":[],"package":"dio","purl":"pkg:pub/dio","source":"GHSA-9324-jv53-9cc8"}],"prev":{"headline":"Integer overflow in n/a","id":"CVE-2021-31401"},"products":["n/a"],"published":"2021-04-15","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can inject CRLF characters into HTTP requests via the method string in the Dart dio package, potentially altering request structure.","url":"https://insights.sbomify.com/CVE-2021-31402/"}