{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "tokio",
          "vendor": "tokio-rs",
          "versions": [
            {
              "status": "affected",
              "version": "= 1.54.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Tokio is a runtime for writing applications with Rust. In 1.54.0, a race condition between tokio::time::Interval::poll_tick (including .tick().await) and the multi-threaded runtime\u0027s time driver could drop an internal timer entry without synchronizing with the driver thread that was firing it. The race caused a use-after-free on the timer\u0027s waker and task state in safe Rust, which could produce assertion panics, task reference-count corruption, or heap memory corruption. This issue is fixed in 1.54.1."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-362",
              "description": "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-23T17:13:16.161Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/tokio-rs/tokio/security/advisories/GHSA-5wjr-9356-4wc8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/tokio-rs/tokio/security/advisories/GHSA-5wjr-9356-4wc8"
        },
        {
          "name": "https://github.com/tokio-rs/tokio/pull/8458",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tokio-rs/tokio/pull/8458"
        },
        {
          "name": "https://github.com/tokio-rs/tokio/pull/8692",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tokio-rs/tokio/pull/8692"
        },
        {
          "name": "https://github.com/tokio-rs/tokio/commit/2b4eba7833864c04ecd2f3e5f4a97ff4f6fa28d0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tokio-rs/tokio/commit/2b4eba7833864c04ecd2f3e5f4a97ff4f6fa28d0"
        },
        {
          "name": "https://github.com/tokio-rs/tokio/commit/5ed619bbaba87357ee5103d71b75e7c84cad99c9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tokio-rs/tokio/commit/5ed619bbaba87357ee5103d71b75e7c84cad99c9"
        },
        {
          "name": "https://github.com/tokio-rs/tokio/releases/tag/tokio-1.54.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tokio-rs/tokio/releases/tag/tokio-1.54.1"
        }
      ],
      "source": {
        "advisory": "GHSA-5wjr-9356-4wc8",
        "discovery": "UNKNOWN"
      },
      "title": "Tokio: Race condition in `tokio::time::Interval`"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-115567",
    "datePublished": "2026-10-23T17:13:16.161Z",
    "dateReserved": "2026-10-22T22:53:15.237Z",
    "dateUpdated": "2026-10-23T17:13:16.161Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}