{"id":"CVE-2026-46690","sourceIdentifier":"security-advisories@github.com","published":"2026-06-12T16:16:29.197","lastModified":"2026-10-26T11:10:00.157","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"unbounded_spsc is an \"unbounded\" extension of bounded_spsc_queue. In versions 0.2.0 and prior, sender::send pointer-as-value transmute causes OOB read and fake-Arc drop under TX/RX race. At time of publication, there are no publicly available patches."},{"lang":"es","value":"unbounded_spsc es una ’ilimitada’ extensión de bounded_spsc_queue. En las versiones 0.2.0 y anteriores, la transmutación de puntero como valor de sender::send causa una lectura OOB y una liberación de Arc falso bajo una condición de carrera TX/RX. En el momento de la publicación, no hay parches disponibles públicamente."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"spearman","product":"unbounded-spsc","versions":[{"version":"<= 0.2.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H","baseScore":5.8,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"HIGH"},"exploitabilityScore":1.0,"impactScore":4.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H","baseScore":5.8,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"HIGH"},"exploitabilityScore":1.0,"impactScore":4.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-12T15:54:19.131542Z","id":"CVE-2026-46690","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-125"},{"lang":"en","value":"CWE-415"},{"lang":"en","value":"CWE-704"},{"lang":"en","value":"CWE-787"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:spearman:unbounded-spsc:*:*:*:*:*:*:*:*","versionEndIncluding":"0.2.0","matchCriteriaId":"12D12A50-936D-46B8-9903-2A8A1420AB07"}]}]}],"references":[{"url":"https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6","source":"security-advisories@github.com","tags":["Exploit","Vendor Advisory"]},{"url":"https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Vendor Advisory"]}]}