{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42796 exists.","fix":"No fix has been published for CVE-2026-42796 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-42796 is a critical code injection vulnerability in Arelle, published on 4 May 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-2026-42796 and fix it if it is affected.\n\nWhat it is: CVE-2026-42796 is a critical code injection vulnerability in Arelle, published on 4 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42796 exists.\n\nAffected product: Arelle. 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-2026-42796/ (Markdown: https://insights.sbomify.com/CVE-2026-42796/index.md)","id":"CVE-2026-42796","markdown":"https://insights.sbomify.com/CVE-2026-42796/index.md","name":"CVE-2026-42796","record":{"aliases":["GHSA-m48p-vcj6-wq3j"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Arelle XBRL software","requires_auth":"none","summary":"Unauthenticated attackers can execute arbitrary code by supplying a malicious URL to the /rest/configure endpoint in Arelle.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"arelle","vendor":"workiva"}],"cvss":{"score":9.2,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"Arelle before 2.39.10 contains an unauthenticated remote code execution vulnerability in the /rest/configure REST endpoint that accepts a plugins query parameter and forwards it to the plugin manager without authentication or authorization. Attackers can supply a URL to a malicious Python file through the plugins parameter, causing the Arelle webserver to download and execute the attacker-controlled code within the Arelle process with its privileges.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-05-08","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-05-08T10:47:48Z","kind":"github_poc","ref":"https://github.com/ameerhamza-malik/CVE-2026-42796","stars":0,"title":null},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-42796.yaml","stars":null,"title":"Arelle \u003c 2.39.10 - Remote Code Execution"}],"tier":"weaponised"},"has_fix":false,"headline":"Arelle \u003c 2.39.10 Unauthenticated RCE via /rest/configure","id":"CVE-2026-42796","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Apache Syncope: JexlContextBuilder Information Disclosure","id":"CVE-2026-42797"},"packages":[],"prev":{"headline":"Symlink Following in Hex Package Export Allows Embedding Files Outside Project Root","id":"CVE-2026-42795"},"products":["Arelle"],"published":"2026-05-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-14","vendors":["Arelle"]},"summary":"Unauthenticated attackers can execute arbitrary code by supplying a malicious URL to the /rest/configure endpoint in Arelle.","url":"https://insights.sbomify.com/CVE-2026-42796/"}