{"answers":{"affected":"1 open source package ship an affected version, including rkyv.","exploited":"There is no known exploitation of RUSTSEC-2026-0233 in the wild and no public exploit code.","fix":"Upgrade rkyv to 0.8.17 or later.","what":"RUSTSEC-2026-0233 is an use after free vulnerability in rkyv, published on 11 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for RUSTSEC-2026-0233 and fix it if it is affected.\n\nWhat it is: RUSTSEC-2026-0233 is an use after free vulnerability in rkyv, published on 11 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of RUSTSEC-2026-0233 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- rkyv (crates.io): affected from 0.8.0-rc.1; fixed in 0.8.17\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/RUSTSEC-2026-0233/ (Markdown: https://insights.sbomify.com/RUSTSEC-2026-0233/index.md)","id":"RUSTSEC-2026-0233","markdown":"https://insights.sbomify.com/RUSTSEC-2026-0233/index.md","name":"RUSTSEC-2026-0233","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust serialization library","requires_auth":"none","summary":"A crafted archive can trigger a use-after-free during deserialization, potentially allowing code execution or denial of service.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Insufficient archive range validation could allow a crafted archive to reach\n`ArchivedString::deserialize` with an invalid pointer. A reported reproducer\nused `rkyv::from_bytes` to deserialize a struct containing strings, a vector,\na box, and an optional hash map. AddressSanitizer detected a heap use-after-free\nduring string deserialization.\n\nThe flaw could be triggered through the safe checked deserialization API when\nprocessing malicious archive bytes. Version 0.8.17 rejects the malformed\narchive during validation. Users who process untrusted archives should upgrade\nto 0.8.17 or later.","ecosystems":["crates.io"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"Crafted archives can cause a use-after-free during deserialization","id":"RUSTSEC-2026-0233","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"crates.io","fixed":["0.8.17"],"introduced":["0.8.0-rc.1"],"last_affected":[],"package":"rkyv","purl":"pkg:cargo/rkyv","source":"RUSTSEC-2026-0233"}],"products":null,"published":"2026-05-11","related":[],"sources":[{"class":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"A crafted archive can trigger a use-after-free during deserialization, potentially allowing code execution or denial of service.","url":"https://insights.sbomify.com/RUSTSEC-2026-0233/"}