CVE•Published 2026-10-02•Modified 2026-10-02•0 articles on news•4 live references•NVD data
CVE-2026-104423
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
—
Weaknesses (CWE)
Description
Zebra (zebrad) before 6.2.1 contains an asymmetric resource consumption vulnerability that allows unauthenticated peers to stall block verification by pushing V6 mempool transactions with invalid Halo2 proofs. Attackers can flood the shared unprioritized Halo2 verification queue with zero-fee transactions carrying zero-filled Orchard and Ironwood proofs, causing nodes to fall behind the chain tip.
Timeline
Published 2026-10-02
Modified 2026-10-02
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-2026-104423Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-104423Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-104423Censys host search filtered to this CVE id.
grep.app
CVE-2026-104423Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-104423GitHub code search for direct mentions.
Google dork
"CVE-2026-104423" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-104423 on GitHub.
We haven't classified any articles referencing CVE-2026-104423 yet. The external references above still apply.