{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33491 exists.","fix":"No fix has been published for CVE-2026-33491 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-33491 is a high-severity memory corruption vulnerability in zenc-lang zenc, published on 26 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-33491 and fix it if it is affected.\n\nWhat it is: CVE-2026-33491 is a high-severity memory corruption vulnerability in zenc-lang zenc, published on 26 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33491 exists.\n\nAffected product: zenc-lang zenc. 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-2026-33491/ (Markdown: https://insights.sbomify.com/CVE-2026-33491/index.md)","id":"CVE-2026-33491","markdown":"https://insights.sbomify.com/CVE-2026-33491/index.md","name":"CVE-2026-33491","record":{"aliases":["GHSA-rv74-w6q7-h8xr"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Zen C compiler","requires_auth":"none","summary":"Attackers can execute arbitrary code or crash the Zen C compiler by providing a source file with excessively long identifiers.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"zen_c","vendor":"zenc-lang"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"Zen C is a systems programming language that compiles to human-readable GNU C/C11. Prior to version 0.4.4, a stack-based buffer overflow vulnerability in the Zen C compiler allows attackers to cause a compiler crash or potentially execute arbitrary code by providing a specially crafted Zen C source file (`.zc`) with excessively long struct, function, or trait identifiers. Users are advised to update to Zen C version v0.4.4 or later to receive a patch.","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":"Zen-C has Stack-Based Buffer Overflow in Identifier Mangling","id":"CVE-2026-33491","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"AVideo has Session Fixation via GET PHPSESSID Parameter With Disabled Login Session Regeneration","id":"CVE-2026-33492"},"packages":[],"prev":{"headline":"h3: Missing Path Segment Boundary Check in `mount()` Causes Middleware Execution on Unrelated Prefix-Matching Routes","id":"CVE-2026-33490"},"products":["zenc"],"published":"2026-03-26","related":[{"cvss_score":6.6,"headline":"Zen-C Vulnerable to Command Injection via Malicious Output Filename","id":"CVE-2026-28207","kev_date_added":null,"published":"2026-02-26"}],"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":"total"},"state":"PUBLISHED","updated":"2026-03-27","vendors":["zenc-lang"]},"summary":"Attackers can execute arbitrary code or crash the Zen C compiler by providing a source file with excessively long identifiers.","url":"https://insights.sbomify.com/CVE-2026-33491/"}