In Eclipse Jetty versions 9.4.0 to 9.4.56, a vulnerability exists that allows for a buffer to be incorrectly released when encountering a gzip error while inflating a request body. This vulnerability allows for corrupted and/or inadvertent sharing of data between requests.
The CVSS score for this vulnerability is 7.2, categorizing it as high severity. This indicates a significant risk to organizations using affected versions of Jetty, as it could lead to data integrity issues.
Currently, there are no known exploits or public proof of concept (PoC) available for this vulnerability. However, organizations should remain vigilant and prioritize patching to safeguard their systems.
Organizations should prioritize patching immediately. This vulnerability poses a threat that could potentially compromise sensitive data.
Vulnerability Details
The official description of the vulnerability states that it allows for a buffer to be incorrectly released when confronted with a gzip error during the inflation of a request body. This mismanagement can lead to data corruption and the unintended sharing of data across different requests.
The vulnerability has been classified under CWE-404, which refers to 'Improper Resource Shutdown or Release.' The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N, indicating that it can be exploited over a network with low complexity and does not require any privileges or user interaction.
The affected product is Eclipse Jetty, specifically versions from 9.4.0 to 9.4.56. The vulnerability was published on May 8, 2025.
Technical Analysis
The root cause of this vulnerability lies in the improper release of a buffer when a gzip error occurs. This can lead to scenarios where data intended for one request may inadvertently be shared with another request due to the corrupted state of the buffer.
The attack vector is network-based, meaning that an attacker can exploit this vulnerability remotely. The attack complexity is low, indicating that an attacker does not require advanced skills to carry out an attack.
No privileges are required to exploit this vulnerability, and user interaction is also not necessary. The impacts on confidentiality and integrity are both low, while there is no impact on availability.
Risk & Impact Analysis
The risk to organizations includes potential data corruption and unintended data sharing between requests, which could compromise sensitive information. The blast radius extends to any application utilizing the affected versions of Jetty.
Given the CVSS score of 7.2, organizations should address this vulnerability in their priority patch cycle. The lack of known exploitation should not diminish the urgency of remediation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Eclipse Jetty from 9.4.0 to 9.4.56 are affected by this vulnerability. Organizations using these versions should upgrade to the latest patched version of Jetty.
Mitigation & Remediation
Organizations should apply the latest updates to Eclipse Jetty as soon as possible. If a patch is not available, consider implementing workarounds such as disabling gzip handling or using alternative configurations that do not expose the vulnerability.
For further guidance, organizations can refer to our comprehensive penetration testing services to evaluate their security posture.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor logs for unusual request patterns and anomalies related to gzip processing. Additionally, implementing network monitoring for unexpected data sharing can help identify misuse.
AppSecure Threat Intelligence Insight
This vulnerability in Eclipse Jetty highlights the importance of robust resource management within web applications. As threats evolve, it is critical for security teams to maintain vigilance against similar vulnerabilities.
Organizations are encouraged to invest in security testing methods, such as web application penetration testing, to proactively identify and remediate vulnerabilities before they can be exploited.
For organizations utilizing cloud services, implementing a cloud penetration testing strategy can further enhance security measures against vulnerabilities like this.
In conclusion, addressing this vulnerability promptly is essential to maintaining the integrity and security of web applications utilizing Eclipse Jetty.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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