CVE-2016-10932
HTTPS MitM vulnerability due to lack of hostname verification
An issue was discovered in the hyper crate before 0.9.4 for Rust on Windows. There is an HTTPS man-in-the-middle vulnerability because hostname verification was omitted.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in the hyper crate before 0.9.4 for Rust on Windows. There is an HTTPS man-in-the-middle vulnerability because hostname verification was omitted.
- Record
CVE-2016-10932- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-254
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in the hyper crate before 0.9.4 for Rust on Windows. There is an HTTPS man-in-the-middle vulnerability because hostname verification was omitted.
- Record
CVE-2016-10932- Updated
- 2026-11-02
EUVDEUVD-2021-1670 No score
An issue was discovered in the hyper crate before 0.9.4 for Rust on Windows. There is an HTTPS man-in-the-middle vulnerability because hostname verification was omitted.
- Record
EUVD-2021-1670- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9xjr-m6f3-v5wm
HTTPS MitM vulnerability due to lack of hostname verification
When used on Windows platforms, all versions of Hyper prior to 0.9.4 did not perform hostname verification when making HTTPS requests.
This allows an attacker to perform MitM attacks by preventing any valid CA-issued certificate, even if there's a hostname mismatch.
The problem was addressed by leveraging rust-openssl's built-in support for hostname verification.
- Record
GHSA-9xjr-m6f3-v5wm- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSV
An issue was discovered in the hyper crate before 0.9.4 for Rust on Windows. There is an HTTPS man-in-the-middle vulnerability because hostname verification was omitted.
- Record
CVE-2016-10932- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-9xjr-m6f3-v5wm
HTTPS MitM vulnerability due to lack of hostname verification
When used on Windows platforms, all versions of Hyper prior to 0.9.4 did not perform hostname verification when making HTTPS requests.
This allows an attacker to perform MitM attacks by preventing any valid CA-issued certificate, even if there's a hostname mismatch.
The problem was addressed by leveraging rust-openssl's built-in support for hostname verification.
- Record
GHSA-9xjr-m6f3-v5wm- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSVRUSTSEC-2016-0002
HTTPS MitM vulnerability due to lack of hostname verification
When used on Windows platforms, all versions of Hyper prior to 0.9.4 did not perform hostname verification when making HTTPS requests.
This allows an attacker to perform MitM attacks by preventing any valid CA-issued certificate, even if there's a hostname mismatch.
The problem was addressed by leveraging rust-openssl's built-in support for hostname verification.
- Record
RUSTSEC-2016-0002- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-10932 is a medium vulnerability (CVSS 4.8) in Hyper, published May 9, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.74%, the 54th percentile. Fixed in hyper 0.9.4.
References
rustsec.org/advisories/RUSTSEC-2016-0002.html
nvd.nist.gov/vuln/detail/CVE-2016-10932
github.com/hyperium/hyper/blob/master/CHANGELOG.md
crates.io/crates/hyper