CVE-2021-26305

CRITICAL 9.8CVE-2021-26305 · Published 29/01/2021 · updated 17/06/2026

In short

CVE-2021-26305 is a CRITICAL (CVSS 9.8) vulnerability affecting cdr (cdr project).
Chance of exploitation in the next 30 days (EPSS): 1.7%, higher than 77.5% of all vulnerabilities.
Fix: update to 0.2.4 or later.

Package	Affected versions	Patched versions
cdr cdr_project	`< 0.2.4`	`0.2.4`

Description

An issue was discovered in Deserializer::read_vec in the cdr crate before 0.2.4 for Rust. A user-provided Read implementation can gain access to the old contents of newly allocated heap memory, violating soundness.

References

rustsec.org/advisories/RUSTSEC-2021-0012.html · Exploit

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