{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37463 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2023-37463 is a medium-severity denial of service vulnerability in github cmark-gfm, published on 13 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-37463 and fix it if it is affected.\n\nWhat it is: CVE-2023-37463 is a medium-severity denial of service vulnerability in github cmark-gfm, published on 13 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37463 exists.\n\nAffected product: github cmark-gfm. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2023-37463/ (Markdown: https://insights.sbomify.com/CVE-2023-37463/index.md)","id":"CVE-2023-37463","markdown":"https://insights.sbomify.com/CVE-2023-37463/index.md","name":"CVE-2023-37463","record":{"aliases":["DEBIAN-CVE-2023-37463","GHSA-w4qg-3vf7-m9x5","openSUSE-SU-2024:13136-1","openSUSE-SU-2026:12003-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Markdown parsing library","requires_auth":"low_privilege","summary":"Attackers can cause denial of service in applications using cmark-gfm by triggering quadratic complexity bugs during Markdown parsing.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"cmark-gfm","vendor":"github"}],"cvss":{"score":6.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"cmark-gfm is an extended version of the C reference implementation of CommonMark, a rationalized version of Markdown syntax with a spec. Three polynomial time complexity issues in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. These vulnerabilities have been patched in 0.29.0.gfm.12.","ecosystems":["openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Quadratic complexity bugs may lead to a denial of service","id":"CVE-2023-37463","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":1,"n_references":2,"next":{"headline":"Incorrect Authentication Tag length usage in AES GCM decryption in OpenIDC/cjose","id":"CVE-2023-37464"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["2025.10.22-1.4"],"introduced":["0"],"last_affected":[],"package":"python-cmarkgfm","purl":"pkg:rpm/opensuse/python-cmarkgfm\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:12003-1"}],"prev":{"headline":"org.xwiki.platform:xwiki-platform-skin-ui Eval Injection vulnerability","id":"CVE-2023-37462"},"products":["cmark-gfm"],"published":"2023-07-13","related":[{"cvss_score":9.8,"headline":"CommonMarker Integer Overflow Vulnerability","id":"CVE-2024-22051","kev_date_added":null,"published":"2024-01-04"},{"cvss_score":5.3,"headline":"Quadratic complexity may lead to a denial of service in cmark-gfm","id":"CVE-2023-24824","kev_date_added":null,"published":"2023-03-31"},{"cvss_score":5.3,"headline":"Quadratic complexity may lead to a denial of service in cmark-gfm","id":"CVE-2023-26485","kev_date_added":null,"published":"2023-03-31"},{"cvss_score":5.3,"headline":"cmark-gfm out-of-bounds read in validate_protocol","id":"CVE-2023-22485","kev_date_added":null,"published":"2023-01-24"},{"cvss_score":3.5,"headline":"cmark-gfm Quadratic complexity bug in handle_close_bracket may lead to a denial of service","id":"CVE-2023-22486","kev_date_added":null,"published":"2023-01-24"},{"cvss_score":3.5,"headline":"cmark-gfm Quadratic complexity bugs may lead to a denial of service","id":"CVE-2023-22483","kev_date_added":null,"published":"2023-01-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-10-30","vendors":["github"]},"summary":"Attackers can cause denial of service in applications using cmark-gfm by triggering quadratic complexity bugs during Markdown parsing.","url":"https://insights.sbomify.com/CVE-2023-37463/"}