RHSA-2026:48816: Moderate: libsolv security update

Published Jul 30, 2026
·
Updated

Moderate: libsolv security update

Other sources

The libsolv packages provide a library for resolving package dependencies using a satisfiability algorithm.Security Fix(es): libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data (CVE-2026-48864) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

30 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server - TUS
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
redhat/libsolv<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-debugsource<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-debugsource<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-demo-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-demo-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-tools-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-tools-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/perl-solv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/perl-solv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/python3-solv<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/python3-solv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/python3-solv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/ruby-solv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/ruby-solv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-debugsource<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-demo-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/libsolv-tools-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/perl-solv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/python3-solv<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/python3-solv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1
redhat/ruby-solv-debuginfo<0.7.20-4.el8_8.1
0.7.20-4.el8_8.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/libsolv to a version that resolves this vulnerability.

    Fixed in 0.7.20-4.el8_8.1
  2. Upgrade

    Upgrade redhat/libsolv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.20-4.el8_8.1
  3. Upgrade

    Upgrade redhat/libsolv-debugsource to a version that resolves this vulnerability.

    Fixed in 0.7.20-4.el8_8.1
  4. Upgrade

    Upgrade redhat/libsolv-demo-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.20-4.el8_8.1
  5. Upgrade

    Upgrade redhat/libsolv-tools-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.20-4.el8_8.1
  6. Upgrade

    Upgrade redhat/perl-solv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.20-4.el8_8.1
  7. Upgrade

    Upgrade redhat/python3-solv to a version that resolves this vulnerability.

    Fixed in 0.7.20-4.el8_8.1
  8. Upgrade

    Upgrade redhat/python3-solv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.20-4.el8_8.1
  9. Upgrade

    Upgrade redhat/ruby-solv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.20-4.el8_8.1
  10. Upgrade

    Upgrade libsolv to a version that resolves this vulnerability.

    Patch CVE-2026-48864
  11. Compensating control

    Mitigate exposure to the vulnerability by preventing untrusted or malicious .solv page data from being loaded/processed by libsolv (e.g., only accept repository data from trusted sources).

Event History

Jul 30, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·03:04 PM
Data Sourced
via Red Hat·03:04 PM
Severity
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of RHSA-2026:48816?

The severity of RHSA-2026:48816 is medium, rated at 4.

2

What vulnerability does RHSA-2026:48816 address?

RHSA-2026:48816 addresses a heap buffer overflow in the libsolv library via unchecked decompression of malicious .solv page data, identified as CVE-2026-48864.

3

How do I fix RHSA-2026:48816?

To fix RHSA-2026:48816, update your libsolv packages to the latest version provided in the security update.

4

What software packages are affected by RHSA-2026:48816?

Affected software packages include redhat/libsolv, redhat/libsolv-debuginfo, and several others related to libsolv.

5

What does the libsolv library do that is relevant to RHSA-2026:48816?

The libsolv library is used for resolving package dependencies using a satisfiability algorithm, which is impacted by the vulnerability in RHSA-2026:48816.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203