{"cve":"CVE-2026-46690","nvd":{"published":"2026-06-12T16:16:29.197","modified":"2026-10-26T11:10:00.157","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H","score":5.8},"cwes":["CWE-125","CWE-415","CWE-704","CWE-787"],"references":["https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6","https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6"],"products":["spearman:unbounded-spsc"],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-46690","score":0.0013,"percentile":0.02608,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-6m57-8r3p-pqx6","url":"https://osv.dev/vulnerability/GHSA-6m57-8r3p-pqx6","summary":"unbounded-spsc: Sender::send pointer-as-value transmute causes OOB read and fake-Arc drop under TX/RX race","modified":"2026-06-12T19:45:09.840919611Z","packages":[{"ecosystem":"crates.io","name":"unbounded-spsc","purl":"pkg:cargo/unbounded-spsc","ranges":["<=0.2.0"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}