{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-115567",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-22T22:53:15.237Z",
        "datePublished": "2026-10-23T17:13:16.161Z",
        "dateUpdated": "2026-10-23T17:13:16.161Z"
    },
    "containers": {
        "cna": {
            "title": "Tokio: Race condition in `tokio::time::Interval`",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-362",
                            "lang": "en",
                            "description": "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "LOCAL",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 5.8,
                        "baseSeverity": "MEDIUM",
                        "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"
                    }
                }
            ],
            "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"
                }
            ],
            "affected": [
                {
                    "vendor": "tokio-rs",
                    "product": "tokio",
                    "versions": [
                        {
                            "version": "= 1.54.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-23T17:13:16.161Z"
            },
            "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's 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's 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."
                }
            ],
            "source": {
                "advisory": "GHSA-5wjr-9356-4wc8",
                "discovery": "UNKNOWN"
            }
        }
    }
}