{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-26307 exists.","fix":"No fix has been published for CVE-2020-26307 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-26307 is a high-severity denial of service vulnerability in kates html2markdown, published on 26 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-26307 and fix it if it is affected.\n\nWhat it is: CVE-2020-26307 is a high-severity denial of service vulnerability in kates html2markdown, published on 26 Oct 2024. 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-2020-26307 exists.\n\nAffected product: kates html2markdown. 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-2020-26307/ (Markdown: https://insights.sbomify.com/CVE-2020-26307/index.md)","id":"CVE-2020-26307","markdown":"https://insights.sbomify.com/CVE-2020-26307/index.md","name":"CVE-2020-26307","record":{"aliases":["GHSA-qmpf-c66x-m579"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"HTML to Markdown library","requires_auth":"none","summary":"Attackers can cause denial of service in HTML2Markdown library via specially crafted input triggering inefficient regular expressions.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"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/U:Green","version":"4.0"},"cwes":[{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity"}],"description":"HTML2Markdown is a Javascript implementation for converting HTML to Markdown text. All available versions contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"GHSL-2020-301: Regular Expression Denial of Service (ReDoS) in HTML2Markdown","id":"CVE-2020-26307","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"GHSL-2020-302: Regular Expression Denial of Service (ReDoS) in validate.js","id":"CVE-2020-26308"},"packages":[],"prev":{"headline":"GHSL-2020-296: Regular Expression Denial of Service (ReDoS) in Knwl.js","id":"CVE-2020-26306"},"products":["html2markdown"],"published":"2024-10-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2024-10-28","vendors":["kates"]},"summary":"Attackers can cause denial of service in HTML2Markdown library via specially crafted input triggering inefficient regular expressions.","url":"https://insights.sbomify.com/CVE-2020-26307/"}