{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3386 exists.","fix":"No fix has been published for CVE-2026-3386 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3386 is a medium-severity memory corruption 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-2026-3386 and fix it if it is affected.\n\nWhat it is: CVE-2026-3386 is a medium-severity memory corruption 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-2026-3386 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-2026-3386/ (Markdown: https://insights.sbomify.com/CVE-2026-3386/index.md)","id":"CVE-2026-3386","markdown":"https://insights.sbomify.com/CVE-2026-3386/index.md","name":"CVE-2026-3386","record":{"aliases":["GHSA-fpqc-f6mj-3wrf"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["denial_of_service","data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Wren programming language","requires_auth":"low_privilege","summary":"A local attacker can trigger an out-of-bounds read in the Wren compiler, potentially causing crashes or exposing memory contents.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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-125","name":"Out-of-bounds Read"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A flaw has been found in wren-lang wren up to 0.4.0. Affected by this vulnerability is the function emitOp of the file src/vm/wren_compiler.c. This manipulation causes out-of-bounds read. It is possible to launch the attack on the local host. The exploit has been published 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 emitOp out-of-bounds","id":"CVE-2026-3386","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"wren-lang wren wren_compiler.c getByteCountForArguments null pointer dereference","id":"CVE-2026-3387"},"packages":[],"prev":{"headline":"wren-lang wren wren_compiler.c resolveLocal recursion","id":"CVE-2026-3385"},"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 getByteCountForArguments null pointer dereference","id":"CVE-2026-3387","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 trigger an out-of-bounds read in the Wren compiler, potentially causing crashes or exposing memory contents.","url":"https://insights.sbomify.com/CVE-2026-3386/"}