{"answers":{"affected":"6 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-rendering-parser. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-26479 in the wild and no public exploit code.","fix":"Upgrade org.xwiki.platform:xwiki-platform-rendering-parser to a fixed version for your release line: 14.4.6, 14.9-rc-1 or 13.10.10.","what":"CVE-2023-26479 is a medium-severity denial of service vulnerability in Xwiki Xwiki, published on 2 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-26479 and fix it if it is affected.\n\nWhat it is: CVE-2023-26479 is a medium-severity denial of service vulnerability in Xwiki Xwiki, published on 2 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-26479 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.xwiki.platform:xwiki-platform-rendering-parser (Maven): affected from 14.0; fixed in 14.4.6\n- org.xwiki.platform:xwiki-platform-rendering-parser (Maven): affected from 14.0; fixed in 14.4.6\n- org.xwiki.platform:xwiki-platform-rendering-parser (Maven): affected from 14.5; fixed in 14.9-rc-1\n- org.xwiki.platform:xwiki-platform-rendering-parser (Maven): affected from 14.5; fixed in 14.9-rc-1\n- org.xwiki.platform:xwiki-platform-rendering-parser (Maven): affected from 6.0; fixed in 13.10.10\n- org.xwiki.platform:xwiki-platform-rendering-parser (Maven): affected from 6.0; fixed in 13.10.10\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-2023-26479/ (Markdown: https://insights.sbomify.com/CVE-2023-26479/index.md)","id":"CVE-2023-26479","markdown":"https://insights.sbomify.com/CVE-2023-26479/index.md","name":"CVE-2023-26479","record":{"aliases":["GHSA-52vf-hvv3-98h7"],"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":"low_privilege","summary":"Users with write rights can insert content causing stack overflows, rendering pages and indexes unusable in XWiki.","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":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-755","name":"Improper Handling of Exceptional Conditions"}],"description":"XWiki Platform is a generic wiki platform. Starting in version 6.0, users with write rights can insert well-formed content that is not handled well by the parser. As a consequence, some pages becomes unusable, including the user index (if the page containing the faulty content is a user page) and the page index.\n\nNote that on the page, the normal UI is completely missing and it is not possible to open the editor directly to revert the change as the stack overflow is already triggered while getting the title of the document. This means that it is quite difficult to remove this content once inserted.\n\nThis has been patched in XWiki 13.10.10, 14.4.6, and 14.9-rc-1. A temporary workaround to avoid Stack Overflow errors is to increase the memory allocated to the stack by using the `-Xss` JVM parameter (e.g., `-Xss32m`). This should allow the parser to pass and to fix the faulty content. The consequences for other aspects of the system (e.g., performance) are unknown, and this workaround should be only be used as a temporary solution. The workaround does not prevent the issue occurring again with other content. Consequently, it is strongly advised to upgrade to a version where the issue has been patched.","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":"org.xwiki.platform:xwiki-platform-rendering-parser vulnerable to Improper Handling of Exceptional Conditions","id":"CVE-2023-26479","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"xwiki:xwiki","products":["xwiki:xwiki"],"type":"denial_of_service","year":"2023"},"n_packages":6,"n_references":3,"next":{"headline":"XWiki-Platform vulnerable to stored Cross-site Scripting via the HTML displayer in Live Data","id":"CVE-2023-26480"},"packages":[{"ecosystem":"Maven","fixed":["14.4.6"],"introduced":["14.0"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-parser","purl":null,"source":"GHSA-52vf-hvv3-98h7"},{"ecosystem":"Maven","fixed":["14.4.6"],"introduced":["14.0"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-parser","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rendering-parser","source":"GHSA-52vf-hvv3-98h7"},{"ecosystem":"Maven","fixed":["14.9-rc-1"],"introduced":["14.5"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-parser","purl":null,"source":"GHSA-52vf-hvv3-98h7"},{"ecosystem":"Maven","fixed":["14.9-rc-1"],"introduced":["14.5"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-parser","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rendering-parser","source":"GHSA-52vf-hvv3-98h7"},{"ecosystem":"Maven","fixed":["13.10.10"],"introduced":["6.0"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-parser","purl":null,"source":"GHSA-52vf-hvv3-98h7"},{"ecosystem":"Maven","fixed":["13.10.10"],"introduced":["6.0"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-parser","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rendering-parser","source":"GHSA-52vf-hvv3-98h7"}],"prev":{"headline":"org.xwiki.platform:xwiki-platform-store-filesystem-oldcore has Exposed Dangerous Method or Function","id":"CVE-2023-26478"},"products":["xwiki-platform"],"published":"2023-03-02","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-03-05","vendors":["xwiki"]},"summary":"Users with write rights can insert content causing stack overflows, rendering pages and indexes unusable in XWiki.","url":"https://insights.sbomify.com/CVE-2023-26479/"}