CVE-2021-30456

CRITICAL 9.8CVE-2021-30456 · Published 07/04/2021 · updated 17/06/2026

In short

CVE-2021-30456 is a CRITICAL (CVSS 9.8) vulnerability affecting id-map (id-map project).
Chance of exploitation in the next 30 days (EPSS): 1.1%, higher than 66.8% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
id-map id-map_project	`≤ 2021-02-26`	No fix yet

Description

An issue was discovered in the id-map crate through 2021-02-26 for Rust. A double free can occur in get_or_insert upon a panic of a user-provided f function.

References

rustsec.org/advisories/RUSTSEC-2021-0052.html · Third Party Advisory

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