{"answers":{"affected":"2 open source packages ship an affected version, including redcarpet. It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-26298 in the wild and no public exploit code.","fix":"Upgrade redcarpet to 3.5.1 or later.","what":"CVE-2020-26298 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 11 Jan 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-26298 and fix it if it is affected.\n\nWhat it is: CVE-2020-26298 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 11 Jan 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-26298 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- redcarpet (RubyGems): affected all versions; fixed in 3.5.1\n- redcarpet (RubyGems): affected all versions; fixed in 3.5.1\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-2020-26298/ (Markdown: https://insights.sbomify.com/CVE-2020-26298/index.md)","id":"CVE-2020-26298","markdown":"https://insights.sbomify.com/CVE-2020-26298/index.md","name":"CVE-2020-26298","record":{"aliases":["DEBIAN-CVE-2020-26298","DLA-2526-1","DSA-4831-1","GHSA-q3wr-qw3g-3p4h","OESA-2021-1175"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby Markdown library","requires_auth":"low_privilege","summary":"An injection vulnerability in the Redcarpet Ruby library allows attackers to perform cross-site scripting attacks by bypassing HTML escaping mechanisms.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"redcarpet","vendor":"redcarpet_project"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"},{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used. This is fixed in version 3.5.1 by the referenced commit.","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":"Injection in Redcarpet","id":"CVE-2020-26298","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":"debian:debian_linux","products":["debian:debian_linux"],"type":"xss","year":"2020"},"n_packages":2,"n_references":9,"next":{"headline":"File System Bounds Escape","id":"CVE-2020-26299"},"packages":[{"ecosystem":"RubyGems","fixed":["3.5.1"],"introduced":["0"],"last_affected":[],"package":"redcarpet","purl":null,"source":"GHSA-q3wr-qw3g-3p4h"},{"ecosystem":"RubyGems","fixed":["3.5.1"],"introduced":["0"],"last_affected":[],"package":"redcarpet","purl":"pkg:gem/redcarpet","source":"GHSA-q3wr-qw3g-3p4h"}],"prev":{"headline":"XSS in mdBook's search page","id":"CVE-2020-26297"},"products":["redcarpet"],"published":"2021-01-11","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":"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":"2025-02-13","vendors":["vmg"]},"summary":"An injection vulnerability in the Redcarpet Ruby library allows attackers to perform cross-site scripting attacks by bypassing HTML escaping mechanisms.","url":"https://insights.sbomify.com/CVE-2020-26298/"}