{"answers":{"affected":"6 open source packages ship an affected version, including rack. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-61772 in the wild and no public exploit code.","fix":"Upgrade rack to a fixed version for your release line: 2.2.19, 3.1.17 or 3.2.2.","what":"CVE-2025-61772 is a high-severity denial of service vulnerability in rack, published on 7 Oct 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-2025-61772 and fix it if it is affected.\n\nWhat it is: CVE-2025-61772 is a high-severity denial of service vulnerability in rack, published on 7 Oct 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-2025-61772 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- rack (RubyGems): affected all versions; fixed in 2.2.19\n- rack (RubyGems): affected all versions; fixed in 2.2.19\n- rack (RubyGems): affected from 3.1; fixed in 3.1.17\n- rack (RubyGems): affected from 3.1; fixed in 3.1.17\n- rack (RubyGems): affected from 3.2; fixed in 3.2.2\n- rack (RubyGems): affected from 3.2; fixed in 3.2.2\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-2025-61772/ (Markdown: https://insights.sbomify.com/CVE-2025-61772/index.md)","id":"CVE-2025-61772","markdown":"https://insights.sbomify.com/CVE-2025-61772/index.md","name":"CVE-2025-61772","record":{"aliases":["CLEANSTART-2026-UQ78689","CLEANSTART-2026-UU22048","DEBIAN-CVE-2025-61772","GHSA-wpv5-97wm-hp9c","MINI-3hrm-fcg3-jx3v","MINI-5qr9-4ff7-3787","MINI-5xj2-358x-3836","MINI-6v9f-8fh3-3hcf","MINI-8cg2-6353-66cf","MINI-cvf2-q92c-j92j","MINI-hjm9-5qqx-q2gq","MINI-j5rm-3773-g782","MINI-jfwc-87mf-hfw6","MINI-jgff-8fr4-99mq","MINI-phfj-h9v6-wf6v","MINI-pr22-vvp2-66pr","MINI-wgfg-vjvc-qvjv","MINI-whj8-f69f-wqjm","UBUNTU-CVE-2025-61772"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby web server interface","requires_auth":"none","summary":"Remote attackers can exhaust memory and cause denial of service by sending incomplete multipart headers to Rack's parser.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"rack","vendor":"rack"}],"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-400","name":"Uncontrolled Resource Consumption"}],"description":"Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, `Rack::Multipart::Parser` can accumulate unbounded data when a multipart part’s header block never terminates with the required blank line (`CRLFCRLF`). The parser keeps appending incoming bytes to memory without a size cap, allowing a remote attacker to exhaust memory and cause a denial of service (DoS). Attackers can send incomplete multipart headers to trigger high memory use, leading to process termination (OOM) or severe slowdown. The effect scales with request size limits and concurrency. All applications handling multipart uploads may be affected. Versions 2.2.19, 3.1.17, and 3.2.2 cap per-part header size (e.g., 64 KiB). As a workaround, restrict maximum request sizes at the proxy or web server layer (e.g., Nginx `client_max_body_size`).","ecosystems":["RubyGems"],"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":"Rack's multipart parser buffers unbounded per-part headers, enabling DoS (memory exhaustion)","id":"CVE-2025-61772","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":6,"n_references":4,"next":{"headline":"pyLoad CNL and captcha handlers allow code Injection via unsanitized parameters","id":"CVE-2025-61773"},"packages":[{"ecosystem":"RubyGems","fixed":["2.2.19"],"introduced":["0"],"last_affected":[],"package":"rack","purl":null,"source":"GHSA-wpv5-97wm-hp9c"},{"ecosystem":"RubyGems","fixed":["2.2.19"],"introduced":["0"],"last_affected":[],"package":"rack","purl":"pkg:gem/rack","source":"GHSA-wpv5-97wm-hp9c"},{"ecosystem":"RubyGems","fixed":["3.1.17"],"introduced":["3.1"],"last_affected":[],"package":"rack","purl":null,"source":"GHSA-wpv5-97wm-hp9c"},{"ecosystem":"RubyGems","fixed":["3.1.17"],"introduced":["3.1"],"last_affected":[],"package":"rack","purl":"pkg:gem/rack","source":"GHSA-wpv5-97wm-hp9c"},{"ecosystem":"RubyGems","fixed":["3.2.2"],"introduced":["3.2"],"last_affected":[],"package":"rack","purl":null,"source":"GHSA-wpv5-97wm-hp9c"},{"ecosystem":"RubyGems","fixed":["3.2.2"],"introduced":["3.2"],"last_affected":[],"package":"rack","purl":"pkg:gem/rack","source":"GHSA-wpv5-97wm-hp9c"}],"prev":{"headline":"Rack's multipart parser buffers large non‑file fields entirely in memory, enabling DoS (memory exhaustion)","id":"CVE-2025-61771"},"products":["rack"],"published":"2025-10-07","related":[{"cvss_score":7.5,"headline":"Rack: Local file inclusion in `Rack::Static` via URL Prefix Matching","id":"CVE-2026-34785","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":7.5,"headline":"Rack: Algorithmic-Complexity DoS in Rack::Multipart::Parser","id":"CVE-2026-34827","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":7.5,"headline":"Rack: Denial of Service via Unbounded Multipart File Upload Without Content-Length","id":"CVE-2026-34829","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":7.5,"headline":"Rack has a Directory Traversal via Rack:Directory","id":"CVE-2026-22860","kev_date_added":null,"published":"2026-02-18"},{"cvss_score":7.5,"headline":"Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing","id":"CVE-2025-61919","kev_date_added":null,"published":"2025-10-10"},{"cvss_score":7.5,"headline":"Rack's unbounded multipart preamble buffering enables DoS (memory exhaustion)","id":"CVE-2025-61770","kev_date_added":null,"published":"2025-10-07"},{"cvss_score":7.5,"headline":"Rack's multipart parser buffers large non‑file fields entirely in memory, enabling DoS (memory exhaustion)","id":"CVE-2025-61771","kev_date_added":null,"published":"2025-10-07"}],"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":"2025-10-07","vendors":["rack"]},"summary":"Remote attackers can exhaust memory and cause denial of service by sending incomplete multipart headers to Rack's parser.","url":"https://insights.sbomify.com/CVE-2025-61772/"}