{"answers":{"affected":"4 open source packages ship an affected version, including @payloadcms/plugin-import-export.","exploited":"There is no known exploitation of CVE-2026-105844 in the wild and no public exploit code.","fix":"Upgrade @payloadcms/plugin-import-export to a fixed version for your release line: 3.88.0 or 4.0.0-canary.27.","what":"CVE-2026-105844 is a critical code injection vulnerability in @payloadcms payload, published on 6 Oct 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-2026-105844 and fix it if it is affected.\n\nWhat it is: CVE-2026-105844 is a critical code injection vulnerability in @payloadcms payload, published on 6 Oct 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-2026-105844 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @payloadcms/plugin-import-export (npm): affected from 3.0.0; fixed in 3.88.0\n- @payloadcms/plugin-import-export (npm): affected from 3.0.0; fixed in 3.88.0\n- @payloadcms/plugin-import-export (npm): affected from 4.0.0-canary.0; fixed in 4.0.0-canary.27\n- @payloadcms/plugin-import-export (npm): affected from 4.0.0-canary.0; fixed in 4.0.0-canary.27\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-2026-105844/ (Markdown: https://insights.sbomify.com/CVE-2026-105844/index.md)","id":"CVE-2026-105844","markdown":"https://insights.sbomify.com/CVE-2026-105844/index.md","name":"CVE-2026-105844","record":{"aliases":["GHSA-qf28-8hc6-vwrp"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Payload CMS plugin","requires_auth":"none","summary":"Unauthenticated attackers can achieve remote code execution via prototype pollution in the Payload CMS Import Export plugin when enabled.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an unauthenticated user can submit prototype-sensitive field paths when @payloadcms/plugin-import-export is enabled, causing unintended application behavior that can lead to remote code execution. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":"2026-10-07","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-10-07T19:55:44Z","kind":"github_poc","ref":"https://github.com/murrez/CVE-2026-105844","stars":1,"title":"CVE-2026-105844 — Payload CMS @payloadcms/plugin-import-export \u003c3.88.0 unauth prototype pollution (CWE-1321, CVSS 4.0 9.3). PoCbit PoC: POST /api/exports/export-preview fields __proto__.overrideAccess → ACL bypass / data leak. check/exploit/mass. Fix 3.88.0+. https://pocbit.org/pocs/cve-2026-105844"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Payload: Prototype pollution in Payload Import Export plugin","id":"CVE-2026-105844","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":4,"n_references":3,"next":{"headline":"Payload: SQL Injection in SQLite and Postgres","id":"CVE-2026-105845"},"packages":[{"ecosystem":"npm","fixed":["3.88.0"],"introduced":["3.0.0"],"last_affected":[],"package":"@payloadcms/plugin-import-export","purl":null,"source":"GHSA-qf28-8hc6-vwrp"},{"ecosystem":"npm","fixed":["3.88.0"],"introduced":["3.0.0"],"last_affected":[],"package":"@payloadcms/plugin-import-export","purl":"pkg:npm/%40payloadcms/plugin-import-export","source":"GHSA-qf28-8hc6-vwrp"},{"ecosystem":"npm","fixed":["4.0.0-canary.27"],"introduced":["4.0.0-canary.0"],"last_affected":[],"package":"@payloadcms/plugin-import-export","purl":null,"source":"GHSA-qf28-8hc6-vwrp"},{"ecosystem":"npm","fixed":["4.0.0-canary.27"],"introduced":["4.0.0-canary.0"],"last_affected":[],"package":"@payloadcms/plugin-import-export","purl":"pkg:npm/%40payloadcms/plugin-import-export","source":"GHSA-qf28-8hc6-vwrp"}],"prev":{"headline":"lrzsz before 0.13.0 Heap Buffer Overflow via lrz procheader() Pathname","id":"CVE-2026-105842"},"products":["payload","plugin-import-export"],"published":"2026-10-06","related":[],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-09","vendors":["@payloadcms","payloadcms"]},"summary":"Unauthenticated attackers can achieve remote code execution via prototype pollution in the Payload CMS Import Export plugin when enabled.","url":"https://insights.sbomify.com/CVE-2026-105844/"}