Low severity3.7NVD Advisory· Published Jan 16, 2016· Updated Jun 17, 2026
CVE-2016-1133
CVE-2016-1133
Description
CRLF injection vulnerability in the on_req function in lib/handler/redirect.c in H2O before 1.6.2 and 1.7.x before 1.7.0-beta3 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted URI.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*range: <=1.6.1
- cpe:2.3:a:dena:h2o:1.7.0:beta2:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
5- jvn.jp/en/jp/JVN45928828/index.htmlnvdVendor Advisory
- jvndb.jvn.jp/jvndb/JVNDB-2016-000003nvdVendor Advisory
- github.com/h2o/h2o/issues/682nvd
- github.com/h2o/h2o/issues/684nvd
- h2o.examp1e.net/vulnerabilities.htmlnvd
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