{"answers":{"affected":"1 open source package ship an affected version, including hackage-server.","exploited":"There is no known exploitation of CVE-2026-40472 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-40472 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-40472 is a critical cross-site scripting vulnerability in hackage-server, published on 23 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40472 and fix it if it is affected.\n\nWhat it is: CVE-2026-40472 is a critical cross-site scripting vulnerability in hackage-server, published on 23 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-40472 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- hackage-server (Hackage): affected from 0.1; no fix listed\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-2026-40472/ (Markdown: https://insights.sbomify.com/CVE-2026-40472/index.md)","id":"CVE-2026-40472","markdown":"https://insights.sbomify.com/CVE-2026-40472/index.md","name":"CVE-2026-40472","record":{"aliases":["GHSA-8fw8-47cx-j4q4","HSEC-2026-0004"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Hackage package server","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts via package metadata, leading to stored XSS and potential account takeover on the Hackage server.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat-cnalr","cpe":[],"cvss":{"score":9.9,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"In hackage-server, user-controlled metadata from .cabal files are rendered into HTML\nhref attributes without proper sanitization, enabling stored\nCross-Site Scripting (XSS) attacks.","ecosystems":["Hackage"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Hackage package metadata stored XSS vulnerability","id":"CVE-2026-40472","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":1,"n_references":1,"next":{"headline":"Apache Camel Mina: Unsafe Deserialization in MinaConverter.toObjectInput() via TCP/UDP","id":"CVE-2026-40473"},"packages":[{"ecosystem":"Hackage","fixed":[],"introduced":["0.1"],"last_affected":[],"package":"hackage-server","purl":"pkg:hackage/hackage-server","source":"HSEC-2026-0004"}],"prev":{"headline":"Hackage CSRF vulnerability","id":"CVE-2026-40471"},"products":[],"published":"2026-04-23","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"open","licence":"CC0 1.0","name":"Haskell Security Response Team","prefix":"HSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-23","vendors":[]},"summary":"Attackers can inject malicious scripts via package metadata, leading to stored XSS and potential account takeover on the Hackage server.","url":"https://insights.sbomify.com/CVE-2026-40472/"}