CVE•Published 2026-10-22•Modified 2026-10-22•0 articles on news•3 live references•NVD data
CVE-2026-110354
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
HAProxy 3 before 3.4.6 allows a remote unauthenticated attacker to cause a denial of service (persistent worker-thread CPU exhaustion) via an HTTP/1.1 chunked request. Although the H1 multiplexer drains the request before closing the stream, the parser repeatedly re-processes the same bytes without making progress. The affected thread stays busy at 100% CPU after timeouts expire and after the client disconnects, and repeated requests can consume all worker threads until the process is restarted.
Timeline
Published 2026-10-22
Modified 2026-10-22
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-2026-110354Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-110354Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-110354Censys host search filtered to this CVE id.
grep.app
CVE-2026-110354Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-110354GitHub code search for direct mentions.
Google dork
"CVE-2026-110354" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (1)
We haven't classified any articles referencing CVE-2026-110354 yet. The external references above still apply.