CVE-2026-64785 Vulnerability Analysis & Exploit Details

CVE-2026-64785
Vulnerability Scoring

5.3

/10

Significant Risk

Security assessments indicate that CVE-2026-64785 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

Attack Complexity: Low
Exploits can be performed without significant complexity or special conditions.
Attack Vector: Network
Vulnerability is exploitable over a network without physical access.
Privileges Required: None
No privileges are required for exploitation.
Scope: Unchanged
Exploit remains within the originally vulnerable component.
User Interaction: None
No user interaction is necessary for exploitation.

CVE-2026-64785 Details

Status: Analyzed

Last updated: 🕐 01 Sep 2026, 13:08 UTC
Originally published on: 🕗 23 Jul 2026, 20:17 UTC

Time between publication and last update: 39 days

CVSS Release: version 3

CVSS3 Source

134c704f-9b21-4f2e-91b3-4a467353bcc0

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVE-2026-64785 Vulnerability Summary

CVE-2026-64785: SwiftNIO HTTP/2 was missing validation on inbound HEADERS frames that let CR, LF, NUL, SP and other control characters reach an HTTP/1.1 backend through NIOHTTP2's HTTP/2-to-HTTP/1 codec, enabling HTTP request smuggling or response splitting. This vulnerability is addressed in swift-nio-http2 version 1.45.0.

Assessing the Risk of CVE-2026-64785

Access Complexity Graph

The exploitability of CVE-2026-64785 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-64785

With low attack complexity and no required privileges, CVE-2026-64785 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-64785, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-64785, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: None
CVE-2026-64785 has no significant impact on data confidentiality.
Integrity: Low
Exploiting CVE-2026-64785 may cause minor changes to data without severely impacting its accuracy.
Availability: None
CVE-2026-64785 does not impact system availability.

CVE-2026-64785 References

External References

https://github.com/apple/swift-nio-http2/security/advisories/GHSA-q3g2-m552-3r9c

CWE Common Weakness Enumeration

CWE-444

CAPEC Common Attack Pattern Enumeration and Classification

HTTP Response Smuggling CAPEC-273 An adversary manipulates and injects malicious content in the form of secret unauthorized HTTP responses, into a single HTTP response from a vulnerable or compromised back-end HTTP agent (e.g., server). See CanPrecede relationships for possible consequences. Modification/manipulation of HTTP message headers, request-line and body parameters to disrupt and interfere in the interpretation and parsing of HTTP message lengths/boundaries for consecutive HTTP messages by HTTP agents in a HTTP chain or network path.
HTTP Request Smuggling CAPEC-33 An adversary abuses the flexibility and discrepancies in the parsing and interpretation of HTTP Request messages using various HTTP headers, request-line and body parameters as well as message sizes (denoted by the end of message signaled by a given HTTP header) by different intermediary HTTP agents (e.g., load balancer, reverse proxy, web caching proxies, application firewalls, etc.) to secretly send unauthorized and malicious HTTP requests to a back-end HTTP agent (e.g., web server). See CanPrecede relationships for possible consequences. Modification/manipulation of HTTP message headers, request-line and body parameters to disrupt and interfere in the interpretation and parsing of HTTP message lengths/boundaries for consecutive HTTP messages by HTTP agents in a HTTP chain or network path.

Vulnerable Configurations

cpe:2.3:a:apple:swiftnio_http\/2:0.1.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:0.1.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:0.2.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:0.2.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:0.2.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:0.2.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.0.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.0.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.0.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.0.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.1.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.1.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.2.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.2.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.2.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.2.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.3.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.3.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.4.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.4.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.5.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.5.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.6.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.6.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.6.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.6.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.7.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.7.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.7.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.7.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.7.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.7.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.8.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.8.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.9.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.9.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.9.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.9.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.10.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.10.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.11.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.11.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.12.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.12.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.12.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.12.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.12.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.12.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.12.3:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.12.3:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.13.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.13.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.14.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.14.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.14.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.14.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.14.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.14.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.15.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.15.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.16.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.16.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.16.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.16.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.16.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.16.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.16.3:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.16.3:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.17.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.17.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.3:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.3:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.4:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.4:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.5:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.18.5:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.19.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.19.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.19.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.19.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.19.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.19.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.20.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.20.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.20.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.20.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.21.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.21.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.22.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.22.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.22.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.22.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.23.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.23.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.23.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.23.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.24.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.24.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.24.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.24.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.25.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.25.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.25.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.25.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.25.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.25.2:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.26.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.26.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.27.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.27.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.28.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.28.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.28.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.28.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.29.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.29.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.30.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.30.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.31.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.31.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.32.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.32.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.33.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.33.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.34.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.34.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.34.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.34.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.35.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.35.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.36.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.36.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.37.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.37.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.38.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.38.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.39.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.39.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.39.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.39.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.40.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.40.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.41.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.41.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.42.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.42.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.43.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.43.0:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.44.1:*:*:*:*:swift:*:*
cpe:2.3:a:apple:swiftnio_http\/2:1.44.1:*:*:*:*:swift:*:*

Protect Your Infrastructure against CVE-2026-64785: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

CVE-2026-97663 – The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Author Name in all versions up t...
CVE-2026-97641 – The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and i...
CVE-2026-97637 – The JSON API Auth plugin for WordPress is vulnerable to Authentication Bypass via Cached Session Cookie Disclosure in all versions up to, and inclu...
CVE-2026-97634 – The Event Tickets and Registration plugin for WordPress is vulnerable to generic SQL Injection via the 'orderby' parameter in all versions up to, a...
CVE-2026-97342 – The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'choice' Post Meta via Inser...