{"answers":{"affected":"12 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-legacy-oldcore and org.xwiki.platform:xwiki-platform-oldcore. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-40104 in the wild and no public exploit code.","fix":"Upgrade org.xwiki.platform:xwiki-platform-legacy-oldcore to a fixed version for your release line: 16.10.16, 17.4.8 or 17.10.1.","what":"CVE-2026-40104 is a medium-severity denial of service vulnerability in Xwiki Xwiki, published on 15 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-2026-40104 and fix it if it is affected.\n\nWhat it is: CVE-2026-40104 is a medium-severity denial of service vulnerability in Xwiki Xwiki, published on 15 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-40104 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.xwiki.platform:xwiki-platform-legacy-oldcore (Maven): affected from 1.8-rc-1; fixed in 16.10.16\n- org.xwiki.platform:xwiki-platform-legacy-oldcore (Maven): affected from 1.8-rc-1; fixed in 16.10.16\n- org.xwiki.platform:xwiki-platform-legacy-oldcore (Maven): affected from 17.0.0-rc-1; fixed in 17.4.8\n- org.xwiki.platform:xwiki-platform-legacy-oldcore (Maven): affected from 17.0.0-rc-1; fixed in 17.4.8\n- org.xwiki.platform:xwiki-platform-legacy-oldcore (Maven): affected from 17.5.0-rc-1; fixed in 17.10.1\n- org.xwiki.platform:xwiki-platform-legacy-oldcore (Maven): affected from 17.5.0-rc-1; fixed in 17.10.1\n- org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 1.8-rc-1; fixed in 16.10.16\n- org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 1.8-rc-1; fixed in 16.10.16\n- org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 17.0.0-rc-1; fixed in 17.4.8\n- org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 17.0.0-rc-1; fixed in 17.4.8\n- org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 17.5.0-rc-1; fixed in 17.10.1\n- org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 17.5.0-rc-1; fixed in 17.10.1\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-2026-40104/ (Markdown: https://insights.sbomify.com/CVE-2026-40104/index.md)","id":"CVE-2026-40104","markdown":"https://insights.sbomify.com/CVE-2026-40104/index.md","name":"CVE-2026-40104","record":{"aliases":["GHSA-mrqg-xmgm-rc5g"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"XWiki platform","requires_auth":"none","summary":"Attackers can cause denial of service on large XWiki instances by triggering resource exhaustion via REST API endpoints that lack query limits.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"xwiki","vendor":"xwiki"}],"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","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 1.8-rc-1, 17.0.0-rc-1 and 17.5.0-rc-1 and prior include a resource exhaustion vulnerability in REST API endpoints such as /xwiki/rest/wikis/xwiki/spaces/AnnotationCode/pages/AnnotationConfig/objects/AnnotationCode.AnnotationConfig/0/properties, which list all available pages as part of the metadata for database list properties without applying query limits. On large wikis, this can exhaust available server resources. This issue has been patched in versions 16.10.16, 17.4.8 and 17.10.1.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"XWiki's REST APIs can list all pages/spaces, leading to unavailability","id":"CVE-2026-40104","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"xwiki:xwiki","products":["xwiki:xwiki"],"type":"denial_of_service","year":"2026"},"n_packages":12,"n_references":3,"next":{"headline":"XWiki has Reflected Cross-Site Scripting (XSS) in its page history compare functionality","id":"CVE-2026-40105"},"packages":[{"ecosystem":"Maven","fixed":["16.10.16"],"introduced":["1.8-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-legacy-oldcore","purl":null,"source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["16.10.16"],"introduced":["1.8-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-legacy-oldcore","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-legacy-oldcore","source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["17.4.8"],"introduced":["17.0.0-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-legacy-oldcore","purl":null,"source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["17.4.8"],"introduced":["17.0.0-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-legacy-oldcore","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-legacy-oldcore","source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["17.10.1"],"introduced":["17.5.0-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-legacy-oldcore","purl":null,"source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["17.10.1"],"introduced":["17.5.0-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-legacy-oldcore","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-legacy-oldcore","source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["16.10.16"],"introduced":["1.8-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-oldcore","purl":null,"source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["16.10.16"],"introduced":["1.8-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-oldcore","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-oldcore","source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["17.4.8"],"introduced":["17.0.0-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-oldcore","purl":null,"source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["17.4.8"],"introduced":["17.0.0-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-oldcore","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-oldcore","source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["17.10.1"],"introduced":["17.5.0-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-oldcore","purl":null,"source":"GHSA-mrqg-xmgm-rc5g"},{"ecosystem":"Maven","fixed":["17.10.1"],"introduced":["17.5.0-rc-1"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-oldcore","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-oldcore","source":"GHSA-mrqg-xmgm-rc5g"}],"prev":{"headline":"Vikunja's Scoped API tokens with projects.background permission can delete project backgrounds","id":"CVE-2026-40103"},"products":["org.xwiki.platform:xwiki-platform-legacy-oldcore","org.xwiki.platform:xwiki-platform-oldcore"],"published":"2026-04-15","related":[{"cvss_score":9.8,"headline":"XWiki Platform Eval Injection","id":"CVE-2025-24893","kev_date_added":"2025-10-30","published":"2025-02-20"},{"cvss_score":10,"headline":"XWiki Rendering is vulnerable to RCE attacks when processing nested macros","id":"CVE-2025-53836","kev_date_added":null,"published":"2025-07-14"},{"cvss_score":10,"headline":"XWiki allows remote code execution through the extension sheet","id":"CVE-2024-55662","kev_date_added":null,"published":"2024-12-12"},{"cvss_score":10,"headline":"XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList","id":"CVE-2024-55877","kev_date_added":null,"published":"2024-12-12"},{"cvss_score":10,"headline":"XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet","id":"CVE-2024-37901","kev_date_added":null,"published":"2024-07-31"},{"cvss_score":10,"headline":"XWiki programming rights may be inherited by inclusion","id":"CVE-2024-38369","kev_date_added":null,"published":"2024-06-24"},{"cvss_score":10,"headline":"XWiki Platform: Remote code execution from account via SearchSuggestSourceSheet","id":"CVE-2024-31465","kev_date_added":null,"published":"2024-04-10"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-16","vendors":["xwiki"]},"summary":"Attackers can cause denial of service on large XWiki instances by triggering resource exhaustion via REST API endpoints that lack query limits.","url":"https://insights.sbomify.com/CVE-2026-40104/"}