Io.netty/netty-codec-http: netty: http request smuggling via post-digit whitespace in chunk-size parsing
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
A flaw was found in Netty's `netty-codec-http` component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an attacker to bypass security controls or access unauthorized resources in proxy/backend deployments.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported
- netty-codec-http
Version range not reported