CVE-2021-30454

CRITICAL 9.8CVE-2021-30454 · Published 07/04/2021 · updated 17/06/2026

In short

CVE-2021-30454 is a CRITICAL (CVSS 9.8) vulnerability affecting outer cgi (outer cgi project).
Chance of exploitation in the next 30 days (EPSS): 1.1%, higher than 66.8% of all vulnerabilities.
Fix: update to 0.2.1 or later.

Package	Affected versions	Patched versions
outer cgi outer_cgi_project	`< 0.2.1`	`0.2.1`

Description

An issue was discovered in the outer_cgi crate before 0.2.1 for Rust. A user-provided Read instance receives an uninitialized memory buffer from KeyValueReader.

References

rustsec.org/advisories/RUSTSEC-2021-0051.html · Third Party Advisory

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