RHSA-2026:48818: 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: Stack-based buffer overflow in libsolv's Debian metadata parser when handling SHA384/SHA512 checksums (CVE-2026-9150) libsolv: Heap buffer overflow in libsolv repoaddsolv via negative maxsize from crafted .solv file (CVE-2026-9149) 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

64 affected componentsFixes available
redhat/libsolv<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-debugsource<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-demo-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools-base-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/perl-solv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/python3-solv<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/python3-solv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/ruby-solv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-debugsource<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-demo-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools-base-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/perl-solv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/python3-solv<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/python3-solv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/ruby-solv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-debugsource<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-demo-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools-base-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/perl-solv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/python3-solv<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/python3-solv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/ruby-solv-debuginfo<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/libsolv-debuginfo<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/libsolv-debugsource<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/libsolv-demo-debuginfo<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/libsolv-tools-base-debuginfo<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/libsolv-tools-debuginfo<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/perl-solv-debuginfo<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/python3-solv<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/python3-solv-debuginfo<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/ruby-solv-debuginfo<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/libsolv-devel<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools-base<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-devel<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools-base<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-devel<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-tools-base<0.7.29-8.el10_0.1
0.7.29-8.el10_0.1
redhat/libsolv-devel<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/libsolv-tools<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
redhat/libsolv-tools-base<0.7.29-8.el10_0.1.aa
0.7.29-8.el10_0.1.aa
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  2. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  3. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  4. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  5. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  6. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  7. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  8. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  9. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  10. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  11. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  12. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  13. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  14. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  15. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  16. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  17. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  18. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  19. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  20. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  21. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  22. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  23. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1
  24. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  25. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  26. Upgrade

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

    Fixed in 0.7.29-8.el10_0.1.aa
  27. Compensating control

    Upgrade the libsolv packages as part of the “Moderate: libsolv security update” to remediate the listed libsolv heap/stack buffer overflow vulnerabilities (CVE-2026-9149, CVE-2026-48864, CVE-2026-9150). Follow the update instructions referenced in the advisory article (access.redhat.com/articles/11258).

  28. Compensating control

    Review and ensure systems are updated to address libsolv issues in repo_add_solv and repopagestore (crafted/unchecked .solv data) and the Debian metadata parser SHA384/SHA512 checksum handling overflow, as described in the advisory referenced at access.redhat.com/articles/11258.

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·03:05 PM
Data Sourced
via Red Hat·03:05 PM
Severity

Frequently Asked Questions

1

What is the severity of RHSA-2026:48818?

The severity of RHSA-2026:48818 is classified as medium (4).

2

How do I fix RHSA-2026:48818?

To fix RHSA-2026:48818, update the libsolv packages to the latest version provided in the security advisory.

3

What vulnerabilities does RHSA-2026:48818 address?

RHSA-2026:48818 addresses a stack-based buffer overflow in libsolv's Debian metadata parser related to SHA384/SHA512 checksums (CVE-2026-9150).

4

Which software packages are affected by RHSA-2026:48818?

The affected software packages include redhat/libsolv, redhat/libsolv-debuginfo, and redhat/libsolv-tools-base-debuginfo, among others.

5

What is the nature of the security issue in RHSA-2026:48818?

The security issue in RHSA-2026:48818 involves a buffer overflow vulnerability that can lead to potential exploitation in the libsolv library.

Company

Resources

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