What’s Vulnerable › Vulnerabilities

CVE-2020-35911

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-31 · updated 2026-06-17
• Weakness: CWE-362

Description

An issue was discovered in the lock_api crate before 0.4.2 for Rust. A data race can occur because of MappedRwLockReadGuard unsoundness.

Affected products

• Lock Api Project Lock Api: before 0.4.2 — fixed in 0.4.2

How to fix

Upgrade to a fixed version: Lock Api Project Lock Api 0.4.2. Check the vendor advisory for mitigations.

References

• https://rustsec.org/advisories/RUSTSEC-2020-0070.html
• https://rustsec.org/advisories/RUSTSEC-2020-0070.html

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