CVE-2025-65122 describes a high-severity Regex Denial of Service vulnerability in the youtube-regex npm package, affecting versions up to 1.0.5. This vulnerability allows attackers to exploit the regex functionality, potentially leading to service disruptions. Given its high CVSS score of 7.5, organizations using this package should take immediate action.
The urgency of this vulnerability stems from its ability to impact availability, which can severely disrupt services. With a low attack complexity and no required privileges or user interaction, the risk to organizations includes potential downtime and loss of service integrity. As a result, organizations should prioritize patching immediately.
Currently, there is no known public exploit or proof of concept, but the potential for exploitation remains significant. Organizations using the affected versions need to act swiftly to mitigate risks and ensure service continuity.
The vulnerability was published on May 7, 2026, and is currently classified as deferred. However, the high severity score emphasizes the necessity for immediate attention from security teams.
Vulnerability Details
This vulnerability allows for a Regex Denial of Service in the youtube-regex npm package through version 1.0.5. The CVSS score of 7.5 indicates high severity, and the attack vector is network-based, making it easily exploitable. The low attack complexity further increases the urgency for organizations to address this issue.
The vulnerability falls under CWE-400, indicating it is related to the potential denial of service through resource exhaustion. Organizations using this package should assess their exposure and take necessary steps to protect their applications.
Technical Analysis
The root cause of this vulnerability lies in the regular expression handling within the youtube-regex npm package. Attackers may leverage this flaw to craft specific inputs that cause excessive backtracking and resource consumption, leading to a denial of service.
This vulnerability is network-exploitable, meaning that an attacker can initiate an attack remotely without any physical access to the system. The complexity of the attack is low, and it does not require any privileges or user interaction, making it easily executable.
In terms of impact, the availability of the affected service is compromised, which can lead to significant business disruptions. Organizations must thoroughly monitor their usage of this npm package to ensure robust defenses are in place.
Risk & Impact Analysis
Real-world deployment risks include potential service outages that could affect customer access and satisfaction. Given the nature of the vulnerability, attackers can exploit it easily, resulting in a wide blast radius for organizations that fail to patch.
Organizations must assess the urgency of this vulnerability based on its high CVSS score and the potential for significant impact. Effective remediation must be prioritized to mitigate risks associated with service availability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of the youtube-regex npm package include all versions prior to vendor patch, specifically up to version 1.0.5. Organizations using this package should verify their version and take immediate action to mitigate risks.
Mitigation & Remediation
Organizations should prioritize patching the youtube-regex npm package to a version that addresses this vulnerability. If a patch is unavailable, consider implementing workarounds such as restricting the inputs processed by the regex engine to mitigate the risk of exploitation.
Additional configuration hardening measures, such as input validation and monitoring for unusual patterns, can also help protect against potential attacks. Consider using penetration testing to identify similar weaknesses.
Detection Guidance
Organizations should monitor logs for indicators of exploitation attempts, including unusual patterns in regex processing. Behavioral anomalies in applications using the youtube-regex package may also indicate potential attacks, warranting further investigation.
Network signatures that reflect abnormal traffic patterns may serve as additional detection points. It is essential to establish a baseline for normal application behavior so that deviations can be swiftly identified.
AppSecure Threat Intelligence Insight
CVE-2025-65122 highlights the ongoing challenges organizations face in managing dependencies within their applications. As more software relies on third-party components, the risk of similar vulnerabilities increases. It is crucial for security teams to maintain an effective vulnerability management program to regularly assess and monitor the security posture of all components.
Continuous education and awareness regarding dependency risks can significantly enhance an organization's security resilience. Security teams should also consider adopting practices such as penetration testing methodology to proactively identify vulnerabilities before they can be exploited.
This case serves as a reminder of the importance of vigilance in software supply chain security. By staying informed and taking proactive measures, organizations can mitigate risks associated with third-party dependencies.
Lastly, organizations may benefit from exploring API security best practices as part of their overall security strategy.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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