CVE•Published 2026-07-22•Modified 2026-07-24•0 articles on news•5 live references•NVD data
CVE-2026-50045Nlnetlabs · Unbound
Vulnerability data via NVD (ingested)
CVSS v3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS percentile
—
Description
In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, a single client query for a deeply nested name under a DNSSEC-signed parent can cause Unbound to send more upstream packets per client query than the configured 'max-global-quota'. This effectively bypasses a security configuration that limits upstream amplification traffic.
Timeline
Published 2026-07-22
Modified 2026-07-24
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). Live host counts are a Premium feature.
Shodan · vuln tag
vuln:CVE-2026-50045Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Nlnetlabs Unbound"All exposed Nlnetlabs Unbound instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Unbound"HTTP body or banner mentions "Unbound" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-50045Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-50045Censys host search filtered to this CVE id.
grep.app
CVE-2026-50045Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-50045GitHub code search for direct mentions.
Google dork
"CVE-2026-50045" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-50045 on GitHub.
We haven't classified any articles referencing CVE-2026-50045 yet. The external references above still apply.