Linuxsecurity Denial of Service Vulnerability in grpcurl Affects Fedora Systems
Article Content
- •CVE-2026-27145 allows denial of service via grpcurl on Fedora systems.
- •Affected versions include grpcurl 1.9.3 and earlier; upgrade to 1.9.4 is recommended.
- •Proof-of-concept code for the vulnerability was released shortly after its publication.
A denial of service vulnerability (CVE-2026-27145) has been identified in grpcurl, a command-line tool for interacting with gRPC servers, affecting Fedora systems. The vulnerability allows for excessive processing of DNS SAN entries, potentially leading to service disruption. Fedora versions 1.9.3 and earlier are impacted, with an update to version 1.9.4 available to mitigate the risk. The vulnerability was published on June 2, 2026, with a proof-of-concept released shortly after. Users are advised to upgrade their systems to the latest version to prevent exploitation. The advisory emphasizes the importance of keeping Linux systems secure and up to date. The update can be installed using the 'dnf' package manager. Both articles were published on September 11, 2026, highlighting the urgency of addressing this vulnerability.
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