{"answers":{"affected":"1 open source package ship an affected version, including wasmtime.","exploited":"There is no known exploitation of CVE-2026-119133 in the wild and no public exploit code.","fix":"Upgrade wasmtime to a fixed version for your release line: 48.0.6 or 49.0.3.","what":"CVE-2026-119133 is a low-severity vulnerability in bytecodealliance wasmtime, published on 29 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-119133 and fix it if it is affected.\n\nWhat it is: CVE-2026-119133 is a low-severity vulnerability in bytecodealliance wasmtime, published on 29 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-119133 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- wasmtime (crates.io): affected from 47.0.0; fixed in 48.0.6, 49.0.3\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-2026-119133/ (Markdown: https://insights.sbomify.com/CVE-2026-119133/index.md)","id":"CVE-2026-119133","markdown":"https://insights.sbomify.com/CVE-2026-119133/index.md","name":"CVE-2026-119133","record":{"aliases":["GHSA-9283-62cg-q26h","GHSA-p79w-pv2r-29qp","RUSTSEC-2026-0364"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":2.1,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-758","name":"Reliance on Undefined, Unspecified, or Implementation-Defined Behavior"}],"description":"Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a memory misalignment flaw in VMContext layout that causes undefined behavior when modules contain an odd number of exception tags. A WebAssembly module with an odd tag count misaligns subsequent host fields in embedders with exceptions enabled, although no exploitation path is currently known.","ecosystems":["crates.io"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Misaligned VMContext via Exception Tags","id":"CVE-2026-119133","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":2,"next":{"headline":"Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 caps component-model resource handle tables only per component insta","id":"CVE-2026-119134"},"packages":[{"ecosystem":"crates.io","fixed":["48.0.6","49.0.3"],"introduced":["47.0.0","49.0.0"],"last_affected":[],"package":"wasmtime","purl":"pkg:cargo/wasmtime","source":"RUSTSEC-2026-0364"}],"prev":{"headline":"Wasmtime 49.0.0 before 49.0.3 Host Panic via Overlapping String Transcode in Fused Adapter","id":"CVE-2026-119132"},"products":["wasmtime"],"published":"2026-10-29","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["bytecodealliance"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-119133/"}