RHSA-2026:48818MediumCVSS 7.8

Red Hat Security Advisory: libsolv security update

Published
July 31, 2026
Last Modified
July 31, 2026

🔗 CVE IDs covered (3)

CVE-2026-9149 →CVE-2026-9150 →CVE-2026-48864 →

📋 Description

CVE-2026-9149 — libsolv: Heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file CVE-2026-9150 — libsolv: Stack-based buffer overflow in libsolv's Debian metadata parser when handling SHA384/SHA512 checksums CVE-2026-48864 — libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data

🎯 Affected products120

  • Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libsolv-0:0.7.29-8.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-0:0.7.29-8.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-0:0.7.29-8.el10_0.1.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-0:0.7.29-8.el10_0.1.src as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-0:0.7.29-8.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-debuginfo-0:0.7.29-8.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libsolv-debugsource-0:0.7.29-8.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • +90 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: To mitigate this issue, avoid processing untrusted `.solv` files with libsolv or any applications that consume `.solv` input. Ensure that all `.solv` data processed by the system originates from trusted sources only. Workaround: To mitigate this issue, ensure that libsolv only processes trusted and cryptographically signed Debian repository metadata. Avoid ingesting or processing `Packages` files from untrusted or unverified sources. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (6)