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CVE-2022-1996: Critical Vulnerability in Fedora and go-restful

A critical authorization bypass vulnerability affecting Fedora and go-restful prior to version 3.8.0 has been identified. Organizations using these components should prioritize immediate remediation to mitigate potential impacts.

CRITICALCVSS 9.1 · Published June 8, 2022

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CVE-2022-1996 describes a critical authorization bypass vulnerability that exists in the go-restful library. This vulnerability allows an attacker to bypass authorization controls through a user-controlled key. The affected versions include all versions prior to v3.8.0.

The vulnerability has a CVSS score of 9.1, indicating a critical severity level. This score reflects high risks associated with the potential for unauthorized access to sensitive data, as the confidentiality and integrity impacts are both rated as high.

Organizations using Fedora or the go-restful library should be aware of this vulnerability. The urgency for patching is critical due to the potential for exploitation, which could lead to significant security breaches.

It is imperative for organizations to prioritize remediation efforts immediately to prevent any unauthorized access or data breaches.

Vulnerability Details

The official description of this vulnerability states that it allows for an authorization bypass in the GitHub repository for go-restful prior to version 3.8.0. The vulnerability is classified under CWE-639, which deals with authorization bypass through user-controlled keys.

The CVSS version 3.1 score is 9.1, categorized as critical, due to the following factors: an attack vector of NETWORK, low attack complexity, no privileges required, and no user interaction necessary. The confidentiality and integrity impacts are both rated as HIGH, while availability impact is rated as NONE.

Affected products include the go-restful library and Fedora versions 35 and 36. The vulnerability was published on June 8, 2022, and has been marked as modified since its initial disclosure.

Technical Analysis

The root cause of this vulnerability is an improper authorization check that allows a user to control a key that bypasses security mechanisms. The attack vector is through network access, and the complexity is low, making it easier for attackers to exploit.

No privileges are required for exploitation, meaning that even unauthenticated users can potentially exploit this vulnerability. Additionally, there is no user interaction required, making it even more dangerous.

The impacts of this vulnerability are significant, with high confidentiality and integrity impacts. Attackers may leverage this vulnerability to gain unauthorized access to sensitive information and alter it.

Risk & Impact Analysis

The real-world deployment risk associated with CVE-2022-1996 is substantial. Organizations utilizing the affected versions of Fedora and go-restful are vulnerable to attacks that can exploit this flaw, leading to unauthorized access and potential data breaches.

Given the critical severity of this vulnerability, organizations should prioritize patching immediately. The potential blast radius is significant, as this flaw could affect any application relying on the compromised libraries.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

This vulnerability affects the go-restful project in all versions prior to v3.8.0, as well as Fedora versions 35 and 36. Organizations should ensure they upgrade to the patched versions to mitigate the risk.

Mitigation & Remediation

To remediate this vulnerability, organizations should update to go-restful version 3.8.0 or later. Additionally, Fedora users should ensure they are running the latest patched version of Fedora to avoid potential exploitation.

Organizations unable to immediately apply patches should consider implementing configuration hardening measures, such as restricting access to sensitive components and enhancing monitoring for unusual access patterns.

For further information on security testing, organizations should consult resources like penetration testing to validate the effectiveness of their security measures.

Detection Guidance

Organizations should monitor logs for unusual access attempts, particularly those that may indicate exploitation of this vulnerability. Key indicators may include unauthorized access to endpoints or unexpected modification of resources.

Behavioral anomalies in user interactions with the application can also serve as indicators of potential exploitation.

AppSecure Threat Intelligence Insight

CVE-2022-1996 highlights the continuous need for robust authorization mechanisms in application development. This vulnerability falls within a broader trend of authorization bypass flaws that have plagued many software components.

Security teams should draw lessons from this incident by ensuring comprehensive testing of authorization controls in their applications. Regular audits and penetration testing can help identify similar weaknesses before they can be exploited.

To enhance security posture, organizations can consider adopting a penetration testing methodology that helps build resilience against such vulnerabilities.

Ultimately, the responsibility lies with organizations to proactively manage vulnerabilities like CVE-2022-1996, ensuring that adequate measures are in place to protect sensitive data.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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