CVE-2017-18587 json
Headers containing newline characters can split messages in hyper
published 2017-01-23 9 y ago modified 2026-06-17 4 mo ago also GHSA-q89x-f52w-6hj2 , RUSTSEC-2017-0002 , EUVD-2021-1836
- cvss
- 5.3
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
An issue was discovered in the hyper crate before 0.9.18 for Rust. It mishandles newlines in headers.
Patch / fix
- crates.io hyper 0.9.18, 0.10.2
- hyper hyper 0.9.18, 0.10.2
Exploit prediction
1.03% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| OSV | 3.0 | 5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| GitHub | 3.0 | 5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | hyper | >=0.10.0, <0.10.2 <0.9.18 >=0.0.0-0, <0.9.18 |
0.10.2 0.9.18 |
Classification
- Weakness
-
- CWE-93 Improper Neutralization of CRLF Sequences
References
-
rustsec.org
/advisories/RUSTSEC-2017-0002.html
web, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2017-18587
advisory
-
github.com
/hyperium/hyper
package
-
github.com
/hyperium/hyper/wiki/Security-001
web
-
crates.io
/crates/hyper
package
Sources
- CVE List CVE-2017-18587
- GitHub Advisory GHSA-q89x-f52w-6hj2
- NVD CVE-2017-18587
- OSV RUSTSEC-2017-0002
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.