crates.io mutringbuf vulnerabilities

Latest crates.io mutringbuf CVEs

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1. RUSTSEC-2026-0142 Double-free in `vmem` storage reachable from safe Rust (predecessor of `oneringbuf`)

   Published 2026-05-14

   Unknown

   mutringbuf is the archived predecessor of oneringbuf — the crate was renamed and the GitHub repository was archived on 2025-11-20. All released versions up to 1.0.0 carry the same vmem-feature double-free bug that affects oneringbuf, with the same code paths and the same reproduc...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.