{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3387 exists.","fix":"No fix has been published for CVE-2026-3387 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3387 is a medium-severity vulnerability in wren-lang wren, published on 1 Mar 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-2026-3387 and fix it if it is affected.\n\nWhat it is: CVE-2026-3387 is a medium-severity vulnerability in wren-lang wren, published on 1 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3387 exists.\n\nAffected product: wren-lang wren. 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-2026-3387/ (Markdown: https://insights.sbomify.com/CVE-2026-3387/index.md)","id":"CVE-2026-3387","markdown":"https://insights.sbomify.com/CVE-2026-3387/index.md","name":"CVE-2026-3387","record":{"aliases":["GHSA-w7j5-25g6-jc8f"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Wren programming language","requires_auth":"low_privilege","summary":"A local attacker can cause a denial of service via null pointer dereference in the Wren compiler's argument handling.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"wren","vendor":"wren"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"},{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"description":"A vulnerability has been found in wren-lang wren up to 0.4.0. Affected by this issue is the function getByteCountForArguments of the file src/vm/wren_compiler.c. Such manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"wren-lang wren wren_compiler.c getByteCountForArguments null pointer dereference","id":"CVE-2026-3387","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Squirrel sqcompiler.cpp UnaryOP recursion","id":"CVE-2026-3388"},"packages":[],"prev":{"headline":"wren-lang wren wren_compiler.c emitOp out-of-bounds","id":"CVE-2026-3386"},"products":["wren"],"published":"2026-03-01","related":[{"cvss_score":4.8,"headline":"wren-lang wren wren_compiler.c resolveLocal recursion","id":"CVE-2026-3385","kev_date_added":null,"published":"2026-03-01"},{"cvss_score":4.8,"headline":"wren-lang wren wren_compiler.c emitOp out-of-bounds","id":"CVE-2026-3386","kev_date_added":null,"published":"2026-03-01"},{"cvss_score":4.8,"headline":"wren-lang wren Source File wren_compiler.c peekChar out-of-bounds","id":"CVE-2026-2858","kev_date_added":null,"published":"2026-02-20"},{"cvss_score":4.8,"headline":"wren-lang wren Error Message wren_compiler.c printError stack-based overflow","id":"CVE-2026-2657","kev_date_added":null,"published":"2026-02-18"}],"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)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-02","vendors":["wren-lang"]},"summary":"A local attacker can cause a denial of service via null pointer dereference in the Wren compiler's argument handling.","url":"https://insights.sbomify.com/CVE-2026-3387/"}