CVE-2021-38191
MEDIUMCVSS 5.9/10EPSS 0.83%
Last modified
CVE-2021-38191 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. An issue was discovered in the tokio crate before 1.8.1 for Rust. Upon a JoinHandle::abort, a Task may be dropped in the wrong thread.. EPSS estimates a 0.83% chance of exploitation in the next 30 days.
Description
An issue was discovered in the tokio crate before 1.8.1 for Rust. Upon a JoinHandle::abort, a Task may be dropped in the wrong thread.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tokio | Tokio | >= 0.3.0, < 1.5.1 |
| Tokio | Tokio | >= 1.6.0, < 1.6.3 |
| Tokio | Tokio | >= 1.7.0, < 1.7.2 |
| Tokio | Tokio | 1.8.0 |
References
- https://rustsec.org/advisories/RUSTSEC-2021-0072.htmlExploit, Issue Tracking, Patch, Third Party Advisory
- https://rustsec.org/advisories/RUSTSEC-2021-0072.htmlExploit, Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-38191?
An issue was discovered in the tokio crate before 1.8.1 for Rust. Upon a JoinHandle::abort, a Task may be dropped in the wrong thread.
How severe is CVE-2021-38191?
CVE-2021-38191 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.
How do I fix CVE-2021-38191?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-38191?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST