CVE-2017-18587
CVE-2017-18587 is a medium-severity vulnerability in Hyper with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-93.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (60th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-93
- Affected product: Hyper
- Published:
- Last modified:
Description
An issue was discovered in the hyper crate before 0.9.18 for Rust. It mishandles newlines in headers.
Frequently asked questions
- What is CVE-2017-18587?
- An issue was discovered in the hyper crate before 0.9.18 for Rust. It mishandles newlines in headers.
- How severe is CVE-2017-18587?
- CVE-2017-18587 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2017-18587 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-18587?
- CVE-2017-18587 affects Hyper. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-18587?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2017-18587 published?
- CVE-2017-18587 was published on 2019-08-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:hyper:hyper:*:*:*:*:*:*:*:*
More vulnerabilities in Hyper
- CVE-2020-35863 — Critical (CVSS 9.8): An issue was discovered in the hyper crate before 0.12.34 for Rust. HTTP request smuggling can occur. Remote code…
- CVE-2023-26964 — High (CVSS 7.5): An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2…
- CVE-2022-31394 — High (CVSS 7.5): Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party…
- CVE-2021-32714 — Medium (CVSS 5.9): hyper is an HTTP library for Rust. In versions prior to 0.14.10, hyper's HTTP server and client code had a flaw that…
- CVE-2021-21299 — Medium (CVSS 4.8): hyper is an open-source HTTP library for Rust (crates.io). In hyper from version 0.12.0 and before versions 0.13.10 and…
- CVE-2016-10932 — Medium (CVSS 4.8): An issue was discovered in the hyper crate before 0.9.4 for Rust on Windows. There is an HTTPS man-in-the-middle…
Other CWE-93 (CRLF Injection) vulnerabilities
- CVE-2024-51501 — Critical (CVSS 10.0): Refit is an automatic type-safe REST library for .NET Core, Xamarin and .NET The various header-related Refit…
- CVE-2026-45372 — Critical (CVSS 9.9): cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.44.0, when cpp-httplib's…
- CVE-2026-11362 — Critical (CVSS 9.8): DataDog::DogStatsd versions through 0.07 for Perl allow metric injections from event tags. DataDog::DogStatsd does not…
- CVE-2025-40671 — Critical (CVSS 9.3): SQL injection vulnerability in AES Multimedia's Gestnet v1.07. This vulnerability allows an attacker to retrieve,…
- CVE-2026-11373 — Critical (CVSS 9.1): Net::Statsite::Client versions through 1.1.0 for Perl allow metric injections. Net::Statsite::Client is a client for…
- CVE-2026-50638 — Critical (CVSS 9.1): Metrics::Any::Adapter::DogStatsd versions before 0.04 for Perl does not protect against metric injections. The statsd…