{"answers":{"affected":"1 open source package ship an affected version, including ringbuf.","exploited":"There is no known exploitation of RUSTSEC-2026-0293 in the wild and no public exploit code.","fix":"Upgrade ringbuf to 0.5.2 or later.","what":"RUSTSEC-2026-0293 is an use after free vulnerability in ringbuf, published on 21 Sep 2026."},"fix_prompt":"Check this codebase for RUSTSEC-2026-0293 and fix it if it is affected.\n\nWhat it is: RUSTSEC-2026-0293 is an use after free vulnerability in ringbuf, published on 21 Sep 2026. \nExploitation: There is no known exploitation of RUSTSEC-2026-0293 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- ringbuf (crates.io): affected from 0.0.0-0; fixed in 0.5.2\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-2026-0293/ (Markdown: https://insights.sbomify.com/RUSTSEC-2026-0293/index.md)","id":"RUSTSEC-2026-0293","markdown":"https://insights.sbomify.com/RUSTSEC-2026-0293/index.md","name":"RUSTSEC-2026-0293","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Rust ring buffer library","requires_auth":"none","summary":"A double free or use-after-free vulnerability in the Rust ring buffer library allows attackers to cause crashes or potentially execute code if element drop panics.","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":"`Consumer::skip()` and `Consumer::clear()` are not panic-safe. They drop the\nconsumed elements in place and only afterwards call `advance_read_index()` to move\nthe ring buffer's read index past them. If an element's `Drop` panics mid-loop,\n`advance_read_index()` is never reached, so the read index still points at the\nalready-dropped elements. When the ring buffer is later dropped, its destructor\nre-visits those slots and drops the same elements a second time — a double free\n(CWE-415) / use-after-free (CWE-416) reachable from safe Rust, confirmed under\nAddressSanitizer.\n\n`Consumer::clear()` delegates to `Consumer::skip(self.len())`, so both share the\nsame root cause and the same fix.\n\n## Mitigation\n\nUpdate to 0.5.2 or later (fixed in agerasev/ringbuf#60).","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":"Double free / use-after-free in `Consumer::skip` and `Consumer::clear` when an element's `Drop` panics","id":"RUSTSEC-2026-0293","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":["0.5.2"],"introduced":["0.0.0-0"],"last_affected":[],"package":"ringbuf","purl":"pkg:cargo/ringbuf","source":"RUSTSEC-2026-0293"}],"products":null,"published":"2026-09-21","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 double free or use-after-free vulnerability in the Rust ring buffer library allows attackers to cause crashes or potentially execute code if element drop panics.","url":"https://insights.sbomify.com/RUSTSEC-2026-0293/"}