{"answers":{"affected":"8 open source packages ship an affected version, including actionpack and activesupport. It affects 1 product.","exploited":"There is no known exploitation of CVE-2009-3086 in the wild and no public exploit code.","fix":"Upgrade actionpack to a fixed version for your release line: 2.2.3 or 2.3.4.","what":"CVE-2009-3086 is a medium-severity vulnerability in Rubyonrails Rails, published on 8 Sep 2009. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2009-3086 and fix it if it is affected.\n\nWhat it is: CVE-2009-3086 is a medium-severity vulnerability in Rubyonrails Rails, published on 8 Sep 2009. 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-2009-3086 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- actionpack (RubyGems): affected from 2.1.0; fixed in 2.2.3\n- actionpack (RubyGems): affected from 2.1.0; fixed in 2.2.3\n- actionpack (RubyGems): affected from 2.3.0; fixed in 2.3.4\n- actionpack (RubyGems): affected from 2.3.0; fixed in 2.3.4\n- activesupport (RubyGems): affected from 2.1.0; fixed in 2.2.3\n- activesupport (RubyGems): affected from 2.1.0; fixed in 2.2.3\n- activesupport (RubyGems): affected from 2.3.0; fixed in 2.3.4\n- activesupport (RubyGems): affected from 2.3.0; fixed in 2.3.4\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-2009-3086/ (Markdown: https://insights.sbomify.com/CVE-2009-3086/index.md)","id":"CVE-2009-3086","markdown":"https://insights.sbomify.com/CVE-2009-3086/index.md","name":"CVE-2009-3086","record":{"aliases":["DEBIAN-CVE-2009-3086","GHSA-fg9w-g6m4-557j"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby on Rails","requires_auth":"none","summary":"Remote attackers can exploit a timing side-channel in cookie signature verification to forge valid digests, potentially bypassing authentication or integrity checks.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"rails","vendor":"rubyonrails"}],"cvss":{"score":5,"severity":"medium","source":"nvd","vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","version":"2.0"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"A certain algorithm in Ruby on Rails 2.1.0 through 2.2.2, and 2.3.x before 2.3.4, leaks information about the complexity of message-digest signature verification in the cookie store, which might allow remote attackers to forge a digest via multiple attempts.","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":"actionpack and activesupport vulnerable to information leaks","id":"CVE-2009-3086","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":"rubyonrails:rails","products":["rubyonrails:rails"],"type":"information_disclosure","year":"2009"},"n_packages":8,"n_references":6,"next":{"headline":"Denial of service in n/a","id":"CVE-2009-3087"},"packages":[{"ecosystem":"RubyGems","fixed":["2.2.3"],"introduced":["2.1.0"],"last_affected":[],"package":"actionpack","purl":null,"source":"GHSA-fg9w-g6m4-557j"},{"ecosystem":"RubyGems","fixed":["2.2.3"],"introduced":["2.1.0"],"last_affected":[],"package":"actionpack","purl":"pkg:gem/actionpack","source":"GHSA-fg9w-g6m4-557j"},{"ecosystem":"RubyGems","fixed":["2.3.4"],"introduced":["2.3.0"],"last_affected":[],"package":"actionpack","purl":null,"source":"GHSA-fg9w-g6m4-557j"},{"ecosystem":"RubyGems","fixed":["2.3.4"],"introduced":["2.3.0"],"last_affected":[],"package":"actionpack","purl":"pkg:gem/actionpack","source":"GHSA-fg9w-g6m4-557j"},{"ecosystem":"RubyGems","fixed":["2.2.3"],"introduced":["2.1.0"],"last_affected":[],"package":"activesupport","purl":null,"source":"GHSA-fg9w-g6m4-557j"},{"ecosystem":"RubyGems","fixed":["2.2.3"],"introduced":["2.1.0"],"last_affected":[],"package":"activesupport","purl":"pkg:gem/activesupport","source":"GHSA-fg9w-g6m4-557j"},{"ecosystem":"RubyGems","fixed":["2.3.4"],"introduced":["2.3.0"],"last_affected":[],"package":"activesupport","purl":null,"source":"GHSA-fg9w-g6m4-557j"},{"ecosystem":"RubyGems","fixed":["2.3.4"],"introduced":["2.3.0"],"last_affected":[],"package":"activesupport","purl":"pkg:gem/activesupport","source":"GHSA-fg9w-g6m4-557j"}],"prev":{"headline":"Denial of service in n/a","id":"CVE-2009-3085"},"products":["n/a"],"published":"2009-09-08","related":[{"cvss_score":10,"headline":"Active Record contains deserialization of arbitrary YAML","id":"CVE-2013-0277","kev_date_added":null,"published":"2013-02-13"},{"cvss_score":8.1,"headline":"SQL injection in n/a","id":"CVE-2017-17916","kev_date_added":null,"published":"2017-12-29"},{"cvss_score":8.1,"headline":"SQL injection in n/a","id":"CVE-2017-17917","kev_date_added":null,"published":"2017-12-29"},{"cvss_score":8,"headline":"Rails Active Storage has possible Path Traversal in DiskService","id":"CVE-2026-33195","kev_date_added":null,"published":"2026-03-23"},{"cvss_score":7.5,"headline":"Rails possible ReDoS vulnerability in Accept header parsing in Action Dispatch","id":"CVE-2024-26142","kev_date_added":null,"published":"2024-02-27"},{"cvss_score":7.5,"headline":"ReDoS based DoS vulnerability in Action Dispatch","id":"CVE-2023-22792","kev_date_added":null,"published":"2023-02-09"},{"cvss_score":7.5,"headline":"Denial of Service in Action Dispatch","id":"CVE-2021-22902","kev_date_added":null,"published":"2021-06-11"}],"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":"2024-08-07","vendors":["n/a"]},"summary":"Remote attackers can exploit a timing side-channel in cookie signature verification to forge valid digests, potentially bypassing authentication or integrity checks.","url":"https://insights.sbomify.com/CVE-2009-3086/"}