{"answers":{"affected":"1 open source package ship an affected version, including wasmtime.","exploited":"There is no known exploitation of CVE-2026-119136 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-2026-119136 is a medium-severity vulnerability in bytecodealliance wasmtime, published on 29 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-119136 and fix it if it is affected.\n\nWhat it is: CVE-2026-119136 is a medium-severity vulnerability in bytecodealliance wasmtime, published on 29 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-119136 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- wasmtime (crates.io): affected from 42.0.0; 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-2026-119136/ (Markdown: https://insights.sbomify.com/CVE-2026-119136/index.md)","id":"CVE-2026-119136","markdown":"https://insights.sbomify.com/CVE-2026-119136/index.md","name":"CVE-2026-119136","record":{"aliases":["GHSA-vcg5-q8m5-8379","GHSA-xp2q-mv29-hr2p","RUSTSEC-2026-0362"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1265","name":"Unintended Reentrant Invocation of Non-reentrant Code Via Nested Calls"}],"description":"Wasmtime 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains insufficient checks in Store when mixing async-style and sync-style WebAssembly calls. Embedders re-entering WebAssembly via sync APIs from host functions called asynchronously can trigger runtime panics or unsound cross-thread movement of !Send host variables.","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 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Async-Entrypoint Enforcement Bypass","id":"CVE-2026-119136","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 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Stack Overflow via Type Registry","id":"CVE-2026-119137"},"packages":[{"ecosystem":"crates.io","fixed":["48.0.6","49.0.3"],"introduced":["42.0.0","49.0.0"],"last_affected":[],"package":"wasmtime","purl":"pkg:cargo/wasmtime","source":"RUSTSEC-2026-0362"}],"prev":{"headline":"Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Panic via StreamReader Type Mismatch","id":"CVE-2026-119135"},"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-29","vendors":["bytecodealliance"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-119136/"}