{"answers":{"affected":"3 open source packages ship an affected version, including mistune. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44708 exists.","fix":"Upgrade mistune to 3.2.1 or later.","what":"CVE-2026-44708 is a medium-severity cross-site scripting vulnerability in lepture mistune, published on 26 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-44708 and fix it if it is affected.\n\nWhat it is: CVE-2026-44708 is a medium-severity cross-site scripting vulnerability in lepture mistune, published on 26 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44708 exists.\n\nAffected packages and fixed versions:\n- mistune (PyPI): affected all versions up to 3.2.0; no fix listed\n- mistune (PyPI): affected all versions up to 3.2.0; no fix listed\n- mistune (PyPI): affected all versions; fixed in 3.2.1\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-2026-44708/ (Markdown: https://insights.sbomify.com/CVE-2026-44708/index.md)","id":"CVE-2026-44708","markdown":"https://insights.sbomify.com/CVE-2026-44708/index.md","name":"CVE-2026-44708","record":{"aliases":["AZL-88397","DEBIAN-CVE-2026-44708","GHSA-8g87-j6q8-g93x","PYSEC-2026-2206","UBUNTU-CVE-2026-44708"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Python Markdown parser","requires_auth":"none","summary":"An XSS vulnerability in the Mistune math plugin allows attackers to inject malicious scripts via unescaped math content, even when escaping is enabled.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"mistune","vendor":"mistune_project"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, the mistune math plugin renders inline math ($...$) and block math ($$...$$) by concatenating the raw user-supplied content directly into the HTML output without any HTML escaping. This occurs even when the parser is explicitly created with escape=True, which is supposed to guarantee that all user-controlled text is sanitised before reaching the DOM. This vulnerability is fixed in 3.2.1.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Mistune Math Plugin XSS Escape Bypass","id":"CVE-2026-44708","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"pam_usb: PINENTRY_FALLBACK_APP environment variable allows arbitrary command execution","id":"CVE-2026-44709"},"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["3.2.0"],"package":"mistune","purl":null,"source":"GHSA-8g87-j6q8-g93x"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["3.2.0"],"package":"mistune","purl":"pkg:pypi/mistune","source":"GHSA-8g87-j6q8-g93x"},{"ecosystem":"PyPI","fixed":["3.2.1"],"introduced":["0"],"last_affected":[],"package":"mistune","purl":"pkg:pypi/mistune","source":"PYSEC-2026-2206"}],"prev":{"headline":"Chatwoot: Pre-Account Takeover via OAuth on Unconfirmed Accounts","id":"CVE-2026-44707"},"products":["mistune"],"published":"2026-05-26","related":[{"cvss_score":7.5,"headline":"Mistune plugins/formatting: quadratic-time parsing on long runs of `~~x~~`, `==x==`, and `^^x^^` markers (strikethrough / mark / insert)","id":"CVE-2026-59922","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":7.5,"headline":"inline_parser: quadratic-time parsing on long runs of `**x**` and `***x***` emphasis pairs","id":"CVE-2026-59925","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":7.5,"headline":"Mistune block_parser: quadratic-time parsing on long lists of repeated reference-link definitions","id":"CVE-2026-59928","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":6.1,"headline":"Mistune: XSS via percent-encoded javascript URI bypass in safe_url()","id":"CVE-2026-59923","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":6.1,"headline":"Mistune renderers/html.safe_url: HARMFUL_PROTOCOLS list misses legacy and chained schemes that historically chain to `javascript:` execution","id":"CVE-2026-59929","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":6.1,"headline":"Mistune Heading ID Attribute Injection XSS","id":"CVE-2026-44897","kev_date_added":null,"published":"2026-05-26"}],"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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2026-05-27","vendors":["lepture"]},"summary":"An XSS vulnerability in the Mistune math plugin allows attackers to inject malicious scripts via unescaped math content, even when escaping is enabled.","url":"https://insights.sbomify.com/CVE-2026-44708/"}