{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-22486 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2023-22486 is a low-severity denial of service vulnerability in github cmark-gfm, published on 24 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-22486 and fix it if it is affected.\n\nWhat it is: CVE-2023-22486 is a low-severity denial of service vulnerability in github cmark-gfm, published on 24 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-22486 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-2023-22486/ (Markdown: https://insights.sbomify.com/CVE-2023-22486/index.md)","id":"CVE-2023-22486","markdown":"https://insights.sbomify.com/CVE-2023-22486/index.md","name":"CVE-2023-22486","record":{"aliases":["CLEANSTART-2024-CU29214","DEBIAN-CVE-2023-22486","GHSA-r572-jvj2-3m8p","SUSE-SU-2023:1834-1","UBUNTU-CVE-2023-22486"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Markdown parsing library","requires_auth":"low_privilege","summary":"An attacker can cause denial of service in cmark-gfm by triggering quadratic complexity in bracket handling, exhausting resources.","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":3.5,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-407","name":"Inefficient Algorithmic Complexity"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 contain a  polynomial time complexity issue in handle_close_bracket that may lead to unbounded resource exhaustion and subsequent denial of service. This vulnerability has been patched in 0.29.0.gfm.7.","ecosystems":["SUSE:Linux Enterprise Module for Development Tools 15 SP4","SUSE:Linux Enterprise Module for Package Hub 15 SP4","openSUSE:Leap 15.4"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"cmark-gfm Quadratic complexity bug in handle_close_bracket may lead to a denial of service","id":"CVE-2023-22486","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":3,"n_references":1,"next":{"headline":"Post mentions can be used to read any post on the forum without access control","id":"CVE-2023-22487"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP4","fixed":["0.30.2-150400.3.3.1"],"introduced":["0"],"last_affected":[],"package":"cmark","purl":"pkg:rpm/suse/cmark\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4","source":"SUSE-SU-2023:1834-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP4","fixed":["0.30.2-150400.3.3.1"],"introduced":["0"],"last_affected":[],"package":"cmark","purl":"pkg:rpm/suse/cmark\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP4","source":"SUSE-SU-2023:1834-1"},{"ecosystem":"openSUSE:Leap 15.4","fixed":["0.30.2-150400.3.3.1"],"introduced":["0"],"last_affected":[],"package":"cmark","purl":"pkg:rpm/opensuse/cmark\u0026distro=openSUSE%20Leap%2015.4","source":"SUSE-SU-2023:1834-1"}],"prev":{"headline":"cmark-gfm out-of-bounds read in validate_protocol","id":"CVE-2023-22485"},"products":["cmark-gfm"],"published":"2023-01-24","related":[{"cvss_score":9.8,"headline":"CommonMarker Integer Overflow Vulnerability","id":"CVE-2024-22051","kev_date_added":null,"published":"2024-01-04"},{"cvss_score":6.4,"headline":"Quadratic complexity bugs may lead to a denial of service","id":"CVE-2023-37463","kev_date_added":null,"published":"2023-07-13"},{"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 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":"SUSE"},{"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":"2025-03-10","vendors":["github"]},"summary":"An attacker can cause denial of service in cmark-gfm by triggering quadratic complexity in bracket handling, exhausting resources.","url":"https://insights.sbomify.com/CVE-2023-22486/"}