CVE•Published 2026-09-08•Modified 2026-09-08•0 articles on news•4 live references•NVD data
CVE-2026-19203
Vulnerability data via NVD (ingested)
CVSS v3.1
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EPSS percentile
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Weaknesses (CWE)
Description
A client may issue specially crafted HTTP/1.1 chunked requests to a Jetty server that cause Jetty and an intermediary proxy to interpret different request boundaries, potentially resulting in HTTP request smuggling. This is caused by Jetty accepting a lone LF character as a terminator in parts of chunked request parsing. Depending on the Jetty version and configured HTTP compliance mode, this may occur in chunk extensions, chunk data termination, or trailer termination.
Timeline
Published 2026-09-08
Modified 2026-09-08
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-19203Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-19203Censys host search filtered to this CVE id.
grep.app
CVE-2026-19203Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-19203GitHub code search for direct mentions.
Google dork
"CVE-2026-19203" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (1)
We haven't classified any articles referencing CVE-2026-19203 yet. The external references above still apply.