CVE-2026-2625 is a medium-severity vulnerability affecting the Red Hat RPM Sequoia software. This vulnerability allows an attacker to exploit the RPM signature verification process by providing a specially crafted Red Hat Package Manager (RPM) file. During the verification process, this crafted file can trigger an error in the OpenPGP signature parsing code, resulting in an unconditional termination of the RPM process. Consequently, this issue leads to an application level denial of service, rendering the system unable to process RPM files for signature verification. Organizations utilizing affected systems are at risk.
The CVSS score for this vulnerability is 4.0, indicating a medium severity level. This score highlights the potential impact of the vulnerability on the availability of systems using the affected software. Risk to organizations includes disrupted operations due to the inability to process RPM files, and the urgency for defenders is moderate. Organizations should schedule remediation to mitigate the impact of this vulnerability.
Currently, there are no known public exploits for CVE-2026-2625, but the possibility of exploitation exists. As such, it is crucial for organizations to remain vigilant and apply necessary updates to protect their systems. The publication date of this vulnerability is April 3, 2026, and it is essential that relevant stakeholders are made aware of its existence and implications.
In light of this information, organizations should prioritize patching immediately. Implementing the necessary updates will help ensure that systems remain secure and resilient against potential threats.
Vulnerability Details
CVE-2026-2625 presents a flaw in the Rust RPM Sequoia component, identified as CWE-347. The vulnerability allows an attacker to exploit the software by submitting a specially crafted RPM file. In the process of verifying the signature of this file, the OpenPGP signature parsing code can be triggered to create an error, leading to an unconditional termination of the RPM process. This results in a denial of service that affects the application's ability to process RPM files.
The primary CVSS score sourced from the National Vulnerability Database (NVD) indicates a base score of 5.5, while a secondary score from Red Hat indicates a base score of 4.0. This variance shows that while the vulnerability has a medium severity classification, its impact on availability is significant, as indicated by the availability impact being rated as high by NVD, and low by Red Hat.
Technical Analysis
The root cause of CVE-2026-2625 stems from a flaw in the RPM signature verification process. Specifically, when a crafted file is introduced, it causes an error in the OpenPGP signature parsing code. This vulnerability allows attackers to leverage their crafted RPM files to trigger an unconditional termination of the RPM process.
The attack vector for this vulnerability is local, requiring an attacker to have local access to the system. The attack complexity is rated as low, indicating that the exploit can be carried out without significant effort. No privileges are required for exploitation, and user interaction is not necessary.
The impacts of this vulnerability primarily affect availability, with an availability impact rating of low. This means the system may become unavailable to process RPM files, which can lead to disruptions in operations.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2026-2625 is significant for organizations relying on Red Hat RPM Sequoia. The inability to process RPM files for signature verification can have a significant impact on the operational capabilities of affected systems. Organizations that utilize Red Hat Enterprise Linux versions 9.0 and 10.0, as well as hardened images, are particularly vulnerable.
The urgency assessment is moderate due to the CVSS score. Organizations should address this vulnerability in their priority patch cycle to ensure systems remain secure and operational. Failure to do so may lead to an increased risk of denial of service in environments where RPM files are crucial for operations.
Mitigating this vulnerability is essential, as attackers may leverage it to disrupt system operations. The blast radius potential could extend to all users of the affected components, leading to widespread denial of service across environments.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include Red Hat Enterprise Linux versions 9.0 and 10.0, along with the hardened images and the RPM Sequoia component. All versions prior to vendor patch are vulnerable.
Mitigation & Remediation
Organizations should prioritize applying patches to address CVE-2026-2625. The recommended course of action is to upgrade to the latest version that includes fixes for this vulnerability. If patches are not immediately available, organizations should consider implementing workarounds and configuration hardening to mitigate the risk.
For further guidance, organizations can refer to our penetration testing services to identify and address similar vulnerabilities.
Detection Guidance
To detect potential exploitation of CVE-2026-2625, organizations should monitor logs for any unusual behavior during RPM file processing. Additionally, behavioral anomalies related to the RPM signature verification process should be investigated. Network signatures that indicate attempts to exploit this vulnerability should also be monitored.
AppSecure Threat Intelligence Insight
CVE-2026-2625 represents a significant concern within the Red Hat ecosystem, highlighting the importance of secure package management. The pattern of such vulnerabilities underscores the need for continuous security assessments to identify weaknesses in software components. Organizations should leverage the insights gained from this vulnerability to strengthen their security posture and implement robust defensive measures.
For ongoing updates and best practices, organizations are encouraged to engage with our vulnerability management program and consider our penetration testing methodology for effective risk management.
Lastly, organizations should remain vigilant in monitoring their systems and evolving their security strategies in response to emerging threats, including those similar to CVE-2026-2625.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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