CVE-2016-1133 json
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 remot…
published 2016-01-16 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-2237
- cvss
- 3.7
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 3.7 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
References
-
jvndb.jvn.jp
/jvndb/JVNDB-2016-000003
third-party-advisory, vendor-advisory
-
jvn.jp
/en/jp/JVN45928828/index.html
third-party-advisory, vendor-advisory
- github.com /h2o/h2o/issues/682
- github.com /h2o/h2o/issues/684
- h2o.examp1e.net /vulnerabilities.html#CVE-2016-1133
Sources
- CVE List CVE-2016-1133
- NVD CVE-2016-1133
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.