Critical Vulnerability in perl-DBI: Denial of Service Risk
Summary
RLSA-2026:85916: Important: perl-DBI:1.641 security update. Affects perl-DBI across 4 version ranges.
< 0:1.641-11.module+el8.10.0+40389+be9de675
< 0:1.641-11.module+el8.10.0+40389+69d937a8
< 0:1.641-11.module+el8.10.0+40389+22ad89a7
< 0:1.641-11.module+el8.10.0+40389+75d7e2a7
Fixed in 4 releases; the minimum fixed version depends on the release line you run. How to fix ↓
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Background
The perl-DBI package is a crucial component for the Perl programming language, providing a standardized interface for database operations. It allows developers to interact with various databases using a consistent set of methods and conventions. This package is widely used in applications that require database connectivity, making its security paramount. The recent vulnerability poses a significant risk to applications relying on this package, as it can lead to service disruptions.
Vulnerability Detail
The vulnerability identified as CVE-2026-88815 in perl-DBI allows for a Denial of Service (DoS) attack through an invalid memory read during numeric type casting. This issue arises when the package attempts to convert data types improperly, leading to potential crashes or unresponsive states in applications that utilize the perl-DBI module. The ramifications of this vulnerability can severely impact the availability of services, making it critical for users to address it promptly.
How To Fix
Fixed versions by release line
The minimum fixed version depends on the release line you run.
sudo dnf update perl-DBI-
< 0:1.641-11.module+el8.10.0+40389+be9de6750:1.641-11.module+el8.10.0+40389+be9de675 -
< 0:1.641-11.module+el8.10.0+40389+22ad89a70:1.641-11.module+el8.10.0+40389+22ad89a7 -
< 0:1.641-11.module+el8.10.0+40389+69d937a80:1.641-11.module+el8.10.0+40389+69d937a8 -
< 0:1.641-11.module+el8.10.0+40389+75d7e2a70:1.641-11.module+el8.10.0+40389+75d7e2a7
Tip — Not sure which release line you're on? Vulert can find the fix for the version you are using. Scan free →
Workaround
As a temporary workaround, users can limit the input data types being processed by the perl-DBI module to avoid triggering the vulnerability. However, this is not a permanent solution, and updating the package is strongly recommended.
Conclusion
The perl-DBI package is essential for database interactions in Perl applications, but the recent vulnerability (CVE-2026-88815) poses a significant risk of Denial of Service. Users are advised to update to the patched version to ensure the security and availability of their applications. Monitoring tools like Vulert can assist in identifying and managing such vulnerabilities effectively.
See every vulnerability recorded for perl-DBI →
FAQ
The CVSS score of this vulnerability is 7.5, indicating a high severity level.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The vulnerability can lead to Denial of Service, causing applications to crash or become unresponsive, which can disrupt services relying on the perl-DBI package.
Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software using just a manifest file like package-lock.json.
If immediate updates are not possible, consider implementing input validation to mitigate the risk temporarily until you can apply the patch.
Related vulnerabilities
Recent vulnerabilities recorded for perl-DBI.
