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TI-2021-15868 Aliases CVE-2021-38191GHSA-2grh-hm3w-w7hv

An issue was discovered in the tokio crate before 1.8.1 for Rust.

Priority LOW 28CWE-362Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

EPSS 0.00833 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed tokio (crates.io): 1.8.1, 1.7.2, 1.6.3 +1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—tokio (crates.io)1.8.0 to before 1.8.11.8.1Patch availableGHSA-2grh-hm3w-w7hv
—tokio (crates.io)1.7.0 to before 1.7.21.7.2Patch availableGHSA-2grh-hm3w-w7hv
—tokio (crates.io)1.6.0 to before 1.6.31.6.3Patch availableGHSA-2grh-hm3w-w7hv
—tokio (crates.io)0.3.0 to before 1.5.11.5.1Patch availableGHSA-2grh-hm3w-w7hv
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • tokio (crates.io) Vendor— Affected 1.8.0 to before 1.8.1 Fixed in 1.8.1 Patch available GHSA-2grh-hm3w-w7hv
  • tokio (crates.io) Vendor— Affected 1.7.0 to before 1.7.2 Fixed in 1.7.2 Patch available GHSA-2grh-hm3w-w7hv
  • tokio (crates.io) Vendor— Affected 1.6.0 to before 1.6.3 Fixed in 1.6.3 Patch available GHSA-2grh-hm3w-w7hv
  • tokio (crates.io) Vendor— Affected 0.3.0 to before 1.5.1 Fixed in 1.5.1 Patch available GHSA-2grh-hm3w-w7hv

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:tokio:tokio:*:*:*:*:*:rust:*:*0.3.0 to before 1.5.1; 1.6.0 to before 1.6.3; 1.7.0 to before 1.7.2VulnerableTokio
cpe:2.3:a:tokio:tokio:1.8.0:*:*:*:*:*:*:*1.8.0VulnerableTokio
  • cpe:2.3:a:tokio:tokio:*:*:*:*:*:rust:*:* Versions 0.3.0 to before 1.5.1; 1.6.0 to before 1.6.3; 1.7.0 to before 1.7.2 Vulnerable ·Tokio
  • cpe:2.3:a:tokio:tokio:1.8.0:*:*:*:*:*:*:* Versions 1.8.0 Vulnerable ·Tokio

Remediation

  • Fix · GHSA-2grh-hm3w-w7hv tokio (crates.io) Fixed in 1.8.1 Advisory →
  • Fix · GHSA-2grh-hm3w-w7hv tokio (crates.io) Fixed in 1.7.2 Advisory →
  • Fix · GHSA-2grh-hm3w-w7hv tokio (crates.io) Fixed in 1.6.3 Advisory →
  • Fix · GHSA-2grh-hm3w-w7hv tokio (crates.io) Fixed in 1.5.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-38191
  2. 2026-10-03 Alias added: GHSA-2grh-hm3w-w7hv

References

Exploit 1

Advisory 2

Other 2

  • TI-2024-18146 Mio's tokens for named pipes may be delivered after deregistration CVSS 3.1CRITICAL 9.1
  • TI-2021-20797 An issue was discovered in the tokio crate before 1.8.4, and 1.9.x through 1.13.x before… CVSS 3.1HIGH 8.1
  • TI-2023-08715 Tokio's reject_remote_clients configuration may get dropped when creating a Windows named pipe CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences