{"answers":{"affected":"3 open source packages ship an affected version, including libcrux-ml-dsa.","exploited":"There is no known exploitation of GHSA-fhvh-vw7h-9xf3 in the wild and no public exploit code.","fix":"Upgrade libcrux-ml-dsa to 0.0.9 or later.","what":"GHSA-fhvh-vw7h-9xf3 is a vulnerability in libcrux-ml-dsa, published on 5 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 GHSA-fhvh-vw7h-9xf3 and fix it if it is affected.\n\nWhat it is: GHSA-fhvh-vw7h-9xf3 is a vulnerability in libcrux-ml-dsa, published on 5 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 GHSA-fhvh-vw7h-9xf3 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- libcrux-ml-dsa (crates.io): affected all versions; fixed in 0.0.9\n- libcrux-ml-dsa (crates.io): affected all versions; fixed in 0.0.9\n- libcrux-ml-dsa (crates.io): affected from 0.0.0-0; fixed in 0.0.9\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/GHSA-fhvh-vw7h-9xf3/ (Markdown: https://insights.sbomify.com/GHSA-fhvh-vw7h-9xf3/index.md)","id":"GHSA-fhvh-vw7h-9xf3","markdown":"https://insights.sbomify.com/GHSA-fhvh-vw7h-9xf3/index.md","name":"GHSA-fhvh-vw7h-9xf3","record":{"aliases":["RUSTSEC-2026-0125"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Rust ML-DSA library","requires_auth":"none","summary":"Attackers can bypass signature verification in ML-DSA libraries using AVX2 instructions by crafting invalid signatures, requiring an upgrade to fix.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The AVX2 implementation of ML-DSA verification incorrectly implemented\nthe `use_hint` function, mishandling an edge case that should lead to\nsignature rejection.\n\n## Impact\nAn attacker could make the ML-DSA verifier accept a crafted invalid\nsignature under a maliciously generated verification key, if the AVX2\nimplementation is used.\n\n## Mitigation\nFrom version `0.0.9` the edge case is handled correctly and invalid\nsignatures are rejected.","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":"libcrux-ml-dsa: Signature Verification on AVX2 Platforms Mishandles Edge Case","id":"GHSA-fhvh-vw7h-9xf3","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":3,"n_references":null,"packages":[{"ecosystem":"crates.io","fixed":["0.0.9"],"introduced":["0"],"last_affected":[],"package":"libcrux-ml-dsa","purl":null,"source":"GHSA-fhvh-vw7h-9xf3"},{"ecosystem":"crates.io","fixed":["0.0.9"],"introduced":["0"],"last_affected":[],"package":"libcrux-ml-dsa","purl":"pkg:cargo/libcrux-ml-dsa","source":"GHSA-fhvh-vw7h-9xf3"},{"ecosystem":"crates.io","fixed":["0.0.9"],"introduced":["0.0.0-0"],"last_affected":[],"package":"libcrux-ml-dsa","purl":"pkg:cargo/libcrux-ml-dsa","source":"RUSTSEC-2026-0125"}],"products":null,"published":"2026-05-05","related":[],"sources":[{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"Attackers can bypass signature verification in ML-DSA libraries using AVX2 instructions by crafting invalid signatures, requiring an upgrade to fix.","url":"https://insights.sbomify.com/GHSA-fhvh-vw7h-9xf3/"}