{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3967 exists.","fix":"No fix has been published for CVE-2026-3967 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3967 is a medium-severity unsafe deserialization vulnerability in Alfresco Activiti, published on 12 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-3967 and fix it if it is affected.\n\nWhat it is: CVE-2026-3967 is a medium-severity unsafe deserialization vulnerability in Alfresco Activiti, published on 12 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3967 exists.\n\nAffected product: Alfresco Activiti. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-3967/ (Markdown: https://insights.sbomify.com/CVE-2026-3967/index.md)","id":"CVE-2026-3967","markdown":"https://insights.sbomify.com/CVE-2026-3967/index.md","name":"CVE-2026-3967","record":{"aliases":["GHSA-7wmq-q36p-g2wg"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Activiti workflow engine","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary code via unsafe deserialization in the Activiti process variable serialization system.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A flaw has been found in Alfresco Activiti up to 7.19/8.8.0. Affected by this issue is the function deserialize/createObjectInputStream of the file activiti-core/activiti-engine/src/main/java/org/activiti/engine/impl/variable/SerializableType.java of the component Process Variable Serialization System. This manipulation causes deserialization. Remote exploitation of the attack is possible. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Alfresco Activiti Process Variable Serialization System SerializableType.java createObjectInputStream deserialization","id":"CVE-2026-3967","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"AutohomeCorp frostmourne Oracle Nashorn JavaScript ExpressionRule.java scriptEngine.eval code injection","id":"CVE-2026-3968"},"packages":[],"prev":{"headline":"648540858 wvp-GB28181-pro IP Address ABLMediaNodeServerService.java getDownloadFilePath server-side request forgery","id":"CVE-2026-3966"},"products":["Activiti"],"published":"2026-03-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-03-12","vendors":["Alfresco"]},"summary":"Remote attackers can execute arbitrary code via unsafe deserialization in the Activiti process variable serialization system.","url":"https://insights.sbomify.com/CVE-2026-3967/"}