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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6 Exploit, Vendor Advisory
- https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6 Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.8 · spearmanNVD modified 2026-10-26 11:10
Affected (CPE criteria) 1
cpe:2.3:a:spearman:unbounded-spsc:*:*:*:*:*:*:*:*
References 2
- https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6 Exploit, Vendor Advisory
- https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6 Exploit, Vendor Advisory