Double Free Affecting thin-vec package, versions <0.2.16
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUST-THINVEC-16118007
- published21 Apr 2026
- disclosed14 Apr 2026
- creditUnknown
Introduced: 14 Apr 2026
NewCVE-2026-6654 (opens in a new tab)How to fix?
Upgrade thin-vec to version 0.2.16 or higher.
Overview
Affected versions of this package are vulnerable to Double Free in the IntoIter::drop and ThinVec::clear() functions when a panic occurs during element deallocation. An attacker can achieve memory corruption, including potential arbitrary code execution, by triggering a panic in the Drop implementation of an element, which can lead to use-after-free or double free conditions. This is only exploitable if the container holds heap-owning types and the Drop implementation of an element panics during deallocation.