CVE-2026-41898 Vulnerability Analysis & Exploit Details

CVE-2026-41898
Vulnerability Scoring

9.8
/10
Critical Risk

As a catastrophic security flaw, CVE-2026-41898 has severe implications, demanding immediate intervention.

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-2026-41898 Details

Status: Analyzed

Last updated: 🕠 28 Apr 2026, 17:45 UTC
Originally published on: 🕕 24 Apr 2026, 18:16 UTC

Time between publication and last update: 3 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2026-41898 Vulnerability Summary

CVE-2026-41898: rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.

Assessing the Risk of CVE-2026-41898

Access Complexity Graph

The exploitability of CVE-2026-41898 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-2026-41898

With low attack complexity and no required privileges, CVE-2026-41898 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-2026-41898, 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-2026-41898, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-41898 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2026-41898 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2026-41898 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-41898 References

External References

CWE Common Weakness Enumeration

CWE-130

CAPEC Common Attack Pattern Enumeration and Classification

  • Buffer Overflow via Parameter Expansion CAPEC-47 In this attack, the target software is given input that the adversary knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.

Vulnerable Configurations

  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.24:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.24:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.25:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.25:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.26:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.26:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.27:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.27:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.28:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.28:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.30:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.30:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.31:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.31:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.32:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.32:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.33:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.33:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.35:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.35:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.36:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.36:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.37:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.37:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.38:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.38:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.39:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.39:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.40:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.40:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.41:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.41:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.42:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.42:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.43:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.43:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.44:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.44:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.45:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.45:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.46:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.46:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.47:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.47:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.48:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.48:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.49:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.9.49:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.0:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.0:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.1:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.1:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.2:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.2:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.3:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.3:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.4:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.4:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.5:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.5:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.6:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.6:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.7:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.7:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.8:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.8:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.9:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.9:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.10:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.10:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.11:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.11:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.12:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.12:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.13:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.13:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.14:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.14:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.15:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.15:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.16:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.16:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.17:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.17:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.18:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.18:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.19:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.19:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.20:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.20:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.21:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.21:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.22:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.22:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.23:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.23:*:*:*:*:rust:*:*
  • cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.24:*:*:*:*:rust:*:*
    cpe:2.3:a:rust-openssl_project:rust-openssl:0.10.24:*:*:*:*:rust:*:*

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