{"answers":{"affected":"2 open source packages ship an affected version, including ruby and ruby-min. It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-31810 in the wild and no public exploit code.","fix":"Upgrade ruby to a fixed version for your release line: 2.6.8, 2.7.4 or 3.0.2.","what":"CVE-2021-31810 is a medium-severity server-side request forgery vulnerability in Debian Debian Linux, published on 13 Jul 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-2021-31810 and fix it if it is affected.\n\nWhat it is: CVE-2021-31810 is a medium-severity server-side request forgery vulnerability in Debian Debian Linux, published on 13 Jul 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-2021-31810 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- ruby (Bitnami): affected all versions; fixed in 2.6.8, 2.7.4, 3.0.2\n- ruby-min (Bitnami): affected all versions; fixed in 2.6.8, 2.7.4, 3.0.2\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-2021-31810/ (Markdown: https://insights.sbomify.com/CVE-2021-31810/index.md)","id":"CVE-2021-31810","markdown":"https://insights.sbomify.com/CVE-2021-31810/index.md","name":"CVE-2021-31810","record":{"aliases":["ALPINE-CVE-2021-31810","BIT-ruby-2021-31810","BIT-ruby-min-2021-31810","CLEANSTART-2026-GT10640","DEBIAN-CVE-2021-31810","GHSA-wr95-679j-87v9","JLSEC-2026-1284","UBUNTU-CVE-2021-31810"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby Net::FTP library","requires_auth":"none","summary":"A malicious FTP server can trick Ruby's Net::FTP into connecting to arbitrary internal addresses, enabling port scans and service banner extraction.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"jd_edwards_enterpriseone_tools","vendor":"oracle"},{"product":"ruby","vendor":"ruby-lang"}],"cvss":{"score":5.8,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"cwes":[],"description":"An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).","ecosystems":["Bitnami"],"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":"Server-side request forgery in n/a","id":"CVE-2021-31810","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"debian:debian_linux","products":["debian:debian_linux","oracle:jd_edwards_enterpriseone_tools","ruby-lang:ruby"],"type":"ssrf","year":"2021"},"n_packages":2,"n_references":8,"next":{"headline":"A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading a tiny file","id":"CVE-2021-31811"},"packages":[{"ecosystem":"Bitnami","fixed":["2.6.8","2.7.4","3.0.2"],"introduced":["0","2.7.0","3.0.0"],"last_affected":[],"package":"ruby","purl":"pkg:bitnami/ruby","source":"BIT-ruby-2021-31810"},{"ecosystem":"Bitnami","fixed":["2.6.8","2.7.4","3.0.2"],"introduced":["0","2.7.0","3.0.0"],"last_affected":[],"package":"ruby-min","purl":"pkg:bitnami/ruby-min","source":"BIT-ruby-min-2021-31810"}],"prev":{"headline":"Denial of service in n/a","id":"CVE-2021-31808"},"products":["n/a"],"published":"2021-07-13","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"A malicious FTP server can trick Ruby's Net::FTP into connecting to arbitrary internal addresses, enabling port scans and service banner extraction.","url":"https://insights.sbomify.com/CVE-2021-31810/"}