{"answers":{"affected":"1 open source package ship an affected version, including uncbv.","exploited":"There is no known exploitation of RUSTSEC-2026-0307 in the wild and no public exploit code.","fix":"Upgrade uncbv to 0.3.1 or later.","what":"RUSTSEC-2026-0307 is a path traversal vulnerability in uncbv, published on 23 Sep 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 RUSTSEC-2026-0307 and fix it if it is affected.\n\nWhat it is: RUSTSEC-2026-0307 is a path traversal vulnerability in uncbv, published on 23 Sep 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: There is no known exploitation of RUSTSEC-2026-0307 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- uncbv (crates.io): affected from 0.0.0-0; fixed in 0.3.1\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-2026-0307/ (Markdown: https://insights.sbomify.com/RUSTSEC-2026-0307/index.md)","id":"RUSTSEC-2026-0307","markdown":"https://insights.sbomify.com/RUSTSEC-2026-0307/index.md","name":"RUSTSEC-2026-0307","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Rust archive library","requires_auth":"none","summary":"A malicious archive can write files outside the intended directory via path traversal, requiring user interaction to extract the file.","user_interaction":"required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"### Summary\n\n`uncbv extract` writes each archive entry to `output_dir.join(entry_filename)` using the filename stored in the archive with no check for `..` components or absolute paths. A malicious `.cbv` / `.cbz` archive whose entry name contains `../` (or an absolute path) can therefore cause files to be written outside the output directory chosen by the user. This is a \"zip-slip\" / directory-traversal arbitrary file write (CWE-22).","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":"`uncbv`: archive extraction is vulnerable to path traversal (zip-slip)","id":"RUSTSEC-2026-0307","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"crates.io","fixed":["0.3.1"],"introduced":["0.0.0-0"],"last_affected":[],"package":"uncbv","purl":"pkg:cargo/uncbv","source":"RUSTSEC-2026-0307"}],"products":null,"published":"2026-09-23","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 malicious archive can write files outside the intended directory via path traversal, requiring user interaction to extract the file.","url":"https://insights.sbomify.com/RUSTSEC-2026-0307/"}