{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6493 exists.","fix":"No fix has been published for CVE-2025-6493 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-6493 is a medium-severity denial of service vulnerability in CodeMirror, published on 22 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-6493 and fix it if it is affected.\n\nWhat it is: CVE-2025-6493 is a medium-severity denial of service vulnerability in CodeMirror, published on 22 Jun 2025. 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-2025-6493 exists.\n\nAffected product: CodeMirror. 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-2025-6493/ (Markdown: https://insights.sbomify.com/CVE-2025-6493/index.md)","id":"CVE-2025-6493","markdown":"https://insights.sbomify.com/CVE-2025-6493/index.md","name":"CVE-2025-6493","record":{"aliases":["DEBIAN-CVE-2025-6493","GHSA-pff4-9qxc-79mq","UBUNTU-CVE-2025-6493"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript code editor","requires_auth":"none","summary":"Remote attackers can cause denial of service in CodeMirror Markdown Mode via inefficient regular expression complexity.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"},{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity"}],"description":"A weakness has been identified in CodeMirror up to 5.65.20. Affected is an unknown function of the file mode/markdown/markdown.js of the component Markdown Mode. This manipulation causes inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be exploited. Upgrading to version 6.0 is able to address this issue. You should upgrade the affected component. Not all code samples mentioned in the GitHub issue can be found. The repository mentions, that \"CodeMirror 6 exists, and is [...] much more actively maintained.\"","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"CodeMirror Markdown Mode markdown.js redos","id":"CVE-2025-6493","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"sparklemotion nokogiri hashmap.c hashmap_get_with_hash heap-based overflow","id":"CVE-2025-6494"},"packages":[],"prev":{"headline":"MarkText index.js getRecommendTitleFromMarkdownString redos","id":"CVE-2025-6492"},"products":["CodeMirror"],"published":"2025-06-22","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":"2025-09-29","vendors":["n/a"]},"summary":"Remote attackers can cause denial of service in CodeMirror Markdown Mode via inefficient regular expression complexity.","url":"https://insights.sbomify.com/CVE-2025-6493/"}