{"answers":{"affected":"10 open source packages ship an affected version, including typo3/cms-core. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-0859 in the wild and no public exploit code.","fix":"Upgrade typo3/cms-core to a fixed version for your release line: 10.4.55, 11.5.49, 12.4.41 or 13.4.23.","what":"CVE-2026-0859 is a medium-severity unsafe deserialization vulnerability in Typo3 Typo3, published on 13 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-0859 and fix it if it is affected.\n\nWhat it is: CVE-2026-0859 is a medium-severity unsafe deserialization vulnerability in Typo3 Typo3, published on 13 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-0859 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- typo3/cms-core (Packagist): affected from 10.0.0; fixed in 10.4.55\n- typo3/cms-core (Packagist): affected from 10.0.0; fixed in 10.4.55\n- typo3/cms-core (Packagist): affected from 11.0.0; fixed in 11.5.49\n- typo3/cms-core (Packagist): affected from 11.0.0; fixed in 11.5.49\n- typo3/cms-core (Packagist): affected from 12.0.0; fixed in 12.4.41\n- typo3/cms-core (Packagist): affected from 12.0.0; fixed in 12.4.41\n- typo3/cms-core (Packagist): affected from 13.0.0; fixed in 13.4.23\n- typo3/cms-core (Packagist): affected from 13.0.0; fixed in 13.4.23\n- typo3/cms-core (Packagist): affected from 14.0.0; fixed in 14.0.2\n- typo3/cms-core (Packagist): affected from 14.0.0; fixed in 14.0.2\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-2026-0859/ (Markdown: https://insights.sbomify.com/CVE-2026-0859/index.md)","id":"CVE-2026-0859","markdown":"https://insights.sbomify.com/CVE-2026-0859/index.md","name":"CVE-2026-0859","record":{"aliases":["GHSA-7vp9-x248-9vr9"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"TYPO3 CMS","requires_auth":"low_privilege","summary":"Local attackers with write access to the mail spool directory can achieve arbitrary PHP code execution via insecure deserialization in TYPO3 CMS.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TYPO3","cpe":[{"product":"typo3","vendor":"typo3"}],"cvss":{"score":5.2,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"TYPO3's mail‑file spool deserialization flaw lets local users with write access to the spool directory craft a malicious file that is deserialized during the mailer:spool:send command, enabling arbitrary PHP code execution on the web server. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1.","ecosystems":["Packagist"],"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":"TYPO3 CMS Allows Insecure Deserialization via Mailer File Spool","id":"CVE-2026-0859","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"typo3:typo3","products":["typo3:typo3"],"type":"deserialization","year":"2026"},"n_packages":10,"n_references":4,"next":{"headline":"Mali GPU Kernel Driver allows access to sensitive kernel information","id":"CVE-2026-0860"},"packages":[{"ecosystem":"Packagist","fixed":["10.4.55"],"introduced":["10.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":null,"source":"GHSA-7vp9-x248-9vr9"},{"ecosystem":"Packagist","fixed":["10.4.55"],"introduced":["10.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":"pkg:composer/typo3/cms-core","source":"GHSA-7vp9-x248-9vr9"},{"ecosystem":"Packagist","fixed":["11.5.49"],"introduced":["11.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":null,"source":"GHSA-7vp9-x248-9vr9"},{"ecosystem":"Packagist","fixed":["11.5.49"],"introduced":["11.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":"pkg:composer/typo3/cms-core","source":"GHSA-7vp9-x248-9vr9"},{"ecosystem":"Packagist","fixed":["12.4.41"],"introduced":["12.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":null,"source":"GHSA-7vp9-x248-9vr9"},{"ecosystem":"Packagist","fixed":["12.4.41"],"introduced":["12.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":"pkg:composer/typo3/cms-core","source":"GHSA-7vp9-x248-9vr9"},{"ecosystem":"Packagist","fixed":["13.4.23"],"introduced":["13.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":null,"source":"GHSA-7vp9-x248-9vr9"},{"ecosystem":"Packagist","fixed":["13.4.23"],"introduced":["13.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":"pkg:composer/typo3/cms-core","source":"GHSA-7vp9-x248-9vr9"},{"ecosystem":"Packagist","fixed":["14.0.2"],"introduced":["14.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":null,"source":"GHSA-7vp9-x248-9vr9"},{"ecosystem":"Packagist","fixed":["14.0.2"],"introduced":["14.0.0"],"last_affected":[],"package":"typo3/cms-core","purl":"pkg:composer/typo3/cms-core","source":"GHSA-7vp9-x248-9vr9"}],"prev":{"headline":"PlantUML is vulnerable to Stored XSS due to insufficient sanitization of interactive attributes in GraphViz diagrams","id":"CVE-2026-0858"},"products":["TYPO3 CMS"],"published":"2026-01-13","related":[{"cvss_score":10,"headline":"Indexed Search Engine for TYPO3 Command Execution via Metacharacter Injection","id":"CVE-2009-0258","kev_date_added":null,"published":"2009-01-22"},{"cvss_score":9.8,"headline":"Typo3 SQL injection due to faulty prepared statements","id":"CVE-2011-3583","kev_date_added":null,"published":"2019-11-25"},{"cvss_score":9.8,"headline":"Typo3 Authentication Bypass","id":"CVE-2011-4628","kev_date_added":null,"published":"2019-11-06"},{"cvss_score":8.8,"headline":"Persisted Cross-Site Scripting in Frontend Rendering in typo3","id":"CVE-2023-24814","kev_date_added":null,"published":"2023-02-07"},{"cvss_score":8.8,"headline":"Cross-Site-Request-Forgery in Backend URI Handling in Typo3","id":"CVE-2021-41113","kev_date_added":null,"published":"2021-10-05"},{"cvss_score":8.8,"headline":"Missing Required Cryptographic Step Leading to Sensitive Information Disclosure in TYPO3 CMS","id":"CVE-2020-15098","kev_date_added":null,"published":"2020-07-29"},{"cvss_score":8.8,"headline":"Deserialization of Untrusted Data in TYPO3 CMS","id":"CVE-2020-11067","kev_date_added":null,"published":"2020-05-13"}],"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":"2026-01-13","vendors":["TYPO3"]},"summary":"Local attackers with write access to the mail spool directory can achieve arbitrary PHP code execution via insecure deserialization in TYPO3 CMS.","url":"https://insights.sbomify.com/CVE-2026-0859/"}