Critical Security Update for libsolv: Addressing CVE-2026-48864
Summary
RHSA-2026:49775: Red Hat Security Advisory: libsolv security update. Affects libsolv versions < 0:0.6.34-4.el7_9.1. Fixed in 0:0.6.34-4.el7_9.1. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
libsolv is a dependency resolver library used in various package management systems. It efficiently resolves package dependencies and provides a robust framework for managing software installations. However, it has been identified to have a security vulnerability that could potentially allow unauthorized access or manipulation of system resources.
Vulnerability Detail
The vulnerability identified as CVE-2026-48864 in libsolv allows for potential unauthorized access due to improper handling of certain inputs. This could lead to a situation where an attacker could exploit the vulnerability to gain elevated privileges, access sensitive data, or disrupt system operations. The vulnerability has a CVSS score of 7.8, indicating a high severity level, and it is crucial for users to address this issue promptly to mitigate risks.
How To Fix
Minimum fixed version
0:0.6.34-4.el7_9.1
This is the first release that contains the fix.
sudo dnf update libsolvTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can limit access to the affected package or implement strict input validation in applications that utilize libsolv until the package is updated. However, this is not a permanent solution and updating the package is highly recommended.
Conclusion
The libsolv package has a critical vulnerability (CVE-2026-48864) that poses significant security risks. Users are strongly advised to update to the patched version to ensure their systems remain secure. Temporary workarounds can be implemented, but they do not replace the need for a proper update.
See every vulnerability recorded for libsolv →
FAQ
CVE-2026-48864 is a security vulnerability in the libsolv package that could allow unauthorized access or manipulation of system resources.
The vulnerability has a CVSS score of 7.8, indicating a high severity level that requires immediate attention.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
If immediate updates are not possible, consider implementing strict input validation and limiting access to the affected package as a temporary workaround.
More information can be found in the Red Hat Security Advisory and on the official CVE database.
Related vulnerabilities
Recent vulnerabilities recorded for libsolv.
