High severity7.5NVD Advisory· Published Dec 25, 2020· Updated Jun 17, 2026
CVE-2020-35711
CVE-2020-35711
Description
An issue has been discovered in the arc-swap crate before 0.4.8 (and 1.x before 1.1.0) for Rust. Use of arc_swap::access::Map with the Constant test helper (or with a user-supplied implementation of the Access trait) could sometimes lead to dangling references being returned by the map.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
arc-swapcrates.io | >= 0.4.2, < 0.4.8 | 0.4.8 |
arc-swapcrates.io | >= 1.0.0, < 1.1.0 | 1.1.0 |
Affected products
3- arc-swap crate/arc-swap cratedescription
Patches
Vulnerability mechanics
References
4- github.com/vorner/arc-swap/issues/45nvdExploitPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-9pqx-g3jh-qpqqghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-35711ghsaADVISORY
- rustsec.org/advisories/RUSTSEC-2020-0091.htmlnvdThird Party AdvisoryWEB
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