CVE•Published 2026-06-12•Modified 2026-06-16•0 articles on news•5 live references•NVD data
CVE-2026-46690Spearman · Unbounded-spsc
Vulnerability data via NVD (ingested)
CVSS v3.1
5.8
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
EPSS percentile
2
Exploit Prediction Scoring System · top 98% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-06-12
Modified 2026-06-16
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-46690Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Spearman Unbounded-spsc"All exposed Spearman Unbounded-spsc instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Unbounded-spsc"HTTP body or banner mentions "Unbounded-spsc" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-46690Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-46690Censys host search filtered to this CVE id.
grep.app
CVE-2026-46690Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-46690GitHub code search for direct mentions.
Google dork
"CVE-2026-46690" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-46690 on GitHub.
We haven't classified any articles referencing CVE-2026-46690 yet. The external references above still apply.