{"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"}}}}

{}

{"affected": [{"affectedData": [{"product": "tokio", "vendor": "tokio-rs", "versions": [{"status": "affected", "version": "= 1.54.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-115567", "lastModified": "2026-10-23T18:17:21.303", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.8, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-23T18:17:21.303", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/tokio-rs/tokio/commit/2b4eba7833864c04ecd2f3e5f4a97ff4f6fa28d0"}, {"source": "security-advisories@github.com", "url": "https://github.com/tokio-rs/tokio/commit/5ed619bbaba87357ee5103d71b75e7c84cad99c9"}, {"source": "security-advisories@github.com", "url": "https://github.com/tokio-rs/tokio/pull/8458"}, {"source": "security-advisories@github.com", "url": "https://github.com/tokio-rs/tokio/pull/8692"}, {"source": "security-advisories@github.com", "url": "https://github.com/tokio-rs/tokio/releases/tag/tokio-1.54.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/tokio-rs/tokio/security/advisories/GHSA-5wjr-9356-4wc8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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{"created": "2026-10-23T18:30:02.985342+00:00", "updated": "2026-10-23T18:30:02.985348+00:00", "vendors": []}