Critical Security Flaw in perl-DBI: Heap Out-of-Bounds Write Vulnerability
Summary
ALSA-2026:70753: Important: perl-DBI security update. Affects perl-DBI versions < 1.643-26.el10_2.6. Fixed in 1.643-26.el10_2.6. How to fix ↓
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Background
The perl-DBI package is a widely used database interface module for the Perl programming language. It provides a consistent set of methods, variables, and conventions for database operations, enabling developers to interact with various databases in a standardized manner. This package is essential for Perl applications that require database connectivity, making its security paramount.
Vulnerability Detail
The vulnerability identified as CVE-2026-73194 is a heap out-of-bounds write issue that arises from unvalidated numeric placeholders in the perl-DBI package. This flaw can potentially allow an attacker to manipulate memory, leading to arbitrary code execution or application crashes. The vulnerability stems from improper handling of user input, which can be exploited if an application does not validate the data being passed to the database interface.
How To Fix
Minimum fixed version
1.643-26.el10_2.6
This is the first release that contains the fix.
sudo dnf update perl-DBITip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, developers can implement input validation to ensure that numeric placeholders are properly sanitized before being used in database operations. This can help mitigate the risk of exploitation until the package is updated.
Conclusion
The perl-DBI package is critical for Perl applications that require database interaction. The identified vulnerability, CVE-2026-73194, poses serious risks, including potential arbitrary code execution. It is essential to update to the patched version to mitigate these risks effectively.
See every vulnerability recorded for perl-DBI →
FAQ
CVE-2026-73194 is a security vulnerability in the perl-DBI package that allows for heap out-of-bounds writes due to unvalidated numeric placeholders.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Exploitation of this vulnerability could lead to arbitrary code execution, application crashes, or data corruption, posing significant risks to affected systems.
Yes, a patch is available in version 1.643-26.el10_2.6 of the perl-DBI package. It is crucial to update to this version or later.
If immediate updates are not possible, implement input validation for numeric placeholders to reduce the risk of exploitation until the update can be applied.
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