Hyper
CVE-2023-26964
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource allocation limits
MITRE ATT&CK
1 technique across 1 tactic: Impact The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could exhaust system resources through uncontrolled allocation by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAI
An issue was discovered in hyper v0.13.7. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Set resource limits, implement rate limiting, validate input sizes.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in cargo
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS). Affected products include: Hyper H2, Hyper.
Know when Hyper gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS).
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)NVD
hyper is an HTTP library for Rust. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no au
An issue was discovered in the http crate before 0.1.20 for Rust. Rated high severity (CVSS 7.5), this vulnerability is
An issue in Hyper on macOS version 3.4.1 and before, allows remote attackers to execute arbitrary code via the RunAsNode
An issue was discovered in the hyper crate before 0.12.34 for Rust. Rated critical severity (CVSS 9.8), this vulnerabili
hyper is an HTTP library for rust. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no auth
hyper is an open-source HTTP library for Rust (crates.io). Rated high severity (CVSS 8.1), this vulnerability is remotel
util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveragin
A HTTP/2 implementation built using any version of the Python HPACK library between v1.0.0 and v2.2.0 could be targeted
Inefficient regular expression complexity in Vercel Hyper up to 3.4.1 allows remote attackers with low privileges to cau
hyperstart 1.0.0 in HyperHQ Hyper has memory leaks in the container_setup_modules and hyper_rescan_scsi functions in con
Exploit-DB