{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3449","assignerOrgId":"bae035ff-b466-4ff4-94d0-fc9efd9e1730","state":"PUBLISHED","assignerShortName":"snyk","dateReserved":"2026-03-02T17:14:02.496Z","datePublished":"2026-03-03T05:00:01.085Z","dateUpdated":"2026-05-04T05:23:47.062Z"},"containers":{"cna":{"metrics":[{"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","exploitCodeMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P"},"cvssV4_0":{"version":"4.0","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"}}],"credits":[{"value":"Nanak Singh Khurana","lang":"en"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-705","description":"Incorrect Control Flow Scoping","lang":"en"}]}],"providerMetadata":{"orgId":"bae035ff-b466-4ff4-94d0-fc9efd9e1730","shortName":"snyk","dateUpdated":"2026-05-04T05:23:47.062Z"},"descriptions":[{"value":"Versions of the package @tootallnate/once before 3.0.1 are vulnerable to Incorrect Control Flow Scoping in promise resolving when AbortSignal option is used. The Promise remains in a permanently pending state after the signal is aborted, causing any await or .then() usage to hang indefinitely. This can cause a control-flow leak that can lead to stalled requests, blocked workers, or degraded application availability.","lang":"en"}],"references":[{"url":"https://security.snyk.io/vuln/SNYK-JS-TOOTALLNATEONCE-15250612"},{"url":"https://github.com/TooTallNate/once/issues/8"},{"url":"https://github.com/TooTallNate/once/commit/b9f43cc5259bee2952d91ad3cdbd201a82df448a"}],"affected":[{"product":"@tootallnate/once","versions":[{"version":"0","lessThan":"3.0.1","status":"affected","versionType":"semver"}],"vendor":"n/a"}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-03T15:31:31.197282Z","id":"CVE-2026-3449","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-03T15:31:46.840Z"}}]}}