{"answers":{"affected":"2 open source packages ship an affected version, including marked. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41680 exists.","fix":"Upgrade marked to 18.0.2 or later.","what":"CVE-2026-41680 is a high-severity denial of service vulnerability in markedjs marked, published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-41680 and fix it if it is affected.\n\nWhat it is: CVE-2026-41680 is a high-severity denial of service vulnerability in markedjs marked, published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41680 exists.\n\nAffected packages and fixed versions:\n- marked (npm): affected from 18.0.0; fixed in 18.0.2\n- marked (npm): affected from 18.0.0; fixed in 18.0.2\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-2026-41680/ (Markdown: https://insights.sbomify.com/CVE-2026-41680/index.md)","id":"CVE-2026-41680","markdown":"https://insights.sbomify.com/CVE-2026-41680/index.md","name":"CVE-2026-41680","record":{"aliases":["CLSA-2026-1792775729","GHSA-6v9c-7cg6-27q7","MINI-4h6w-gpx3-5jw6"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Markdown parser library","requires_auth":"none","summary":"An attacker can crash the host application by sending a specific 3-byte input that triggers infinite recursion and memory exhaustion in the marked parser.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"marked","vendor":"marked_project"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"},{"id":"CWE-674","name":"Uncontrolled Recursion"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Marked is a markdown parser and compiler. From 18.0.0 to 18.0.1, a critical Denial of Service (DoS) vulnerability exists in marked. By providing a specific 3-byte input sequence a tab, a vertical tab, and a newline (\\x09\\x0b\\n)—an unauthenticated attacker can trigger an infinite recursion loop during parsing. This leads to unbounded memory allocation, causing the host Node.js application to crash via Memory Exhaustion (OOM). This vulnerability is fixed in 18.0.2.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Marked: OOM Denial of Service via Infinite Recursion in marked Tokenizer","id":"CVE-2026-41680","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check","id":"CVE-2026-41681"},"packages":[{"ecosystem":"npm","fixed":["18.0.2"],"introduced":["18.0.0"],"last_affected":[],"package":"marked","purl":null,"source":"GHSA-6v9c-7cg6-27q7"},{"ecosystem":"npm","fixed":["18.0.2"],"introduced":["18.0.0"],"last_affected":[],"package":"marked","purl":"pkg:npm/marked","source":"GHSA-6v9c-7cg6-27q7"}],"prev":{"headline":"Paperclip Vulnerable to Unauthenticated Remote Code Execution via Import Authorization Bypass","id":"CVE-2026-41679"},"products":["marked"],"published":"2026-04-24","related":[{"cvss_score":7.5,"headline":"Regular Expression Denial of Service in marked","id":"CVE-2017-16114","kev_date_added":null,"published":"2018-06-07"},{"cvss_score":6.9,"headline":"Regular Expression Denial of Service (ReDoS) in markedjs/marked","id":"CVE-2018-25110","kev_date_added":null,"published":"2025-05-23"},{"cvss_score":6.1,"headline":"Multiple Content Injection Vulnerabilities in marked","id":"CVE-2014-3743","kev_date_added":null,"published":"2020-01-06"},{"cvss_score":6.1,"headline":"Sanitization bypass using HTML Entities in marked","id":"CVE-2016-10531","kev_date_added":null,"published":"2018-05-31"},{"cvss_score":6.1,"headline":"Marked vulnerable to XSS from data URIs","id":"CVE-2017-1000427","kev_date_added":null,"published":"2018-01-02"},{"cvss_score":5.3,"headline":"Denial of Service in Marked","id":"CVE-2021-21306","kev_date_added":null,"published":"2021-02-08"}],"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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-24","vendors":["markedjs"]},"summary":"An attacker can crash the host application by sending a specific 3-byte input that triggers infinite recursion and memory exhaustion in the marked parser.","url":"https://insights.sbomify.com/CVE-2026-41680/"}