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Vulnerability · Published May 20, 2026 · Assigned by redhat

CVE-2026-9150Libsolv: stack-based buffer overflow in libsolv's debian metadata parser when handling sha384/sha512 checksums

Medium 6.5

In plain English

A medium-severity stack buffer overflow in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 64.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in libsolv. This stack-based buffer overflow vulnerability occurs in libsolv's Debian metadata parser when processing specially crafted Debian repository metadata. An attacker could exploit this by providing malicious SHA384 or SHA512 checksum tags, leading to memory corruption and a denial of service (DoS) in the affected system.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10libsolv0.7.33-5.el10_2.alma.1ALSA-2026:28236
AlmaLinux:10libsolv-devel0.7.33-5.el10_2.alma.1ALSA-2026:28236
AlmaLinux:10libsolv-tools0.7.33-5.el10_2.alma.1ALSA-2026:28236
AlmaLinux:10libsolv-tools-base0.7.33-5.el10_2.alma.1ALSA-2026:28236
AlmaLinux:10python3-solv0.7.33-5.el10_2.alma.1ALSA-2026:28236
Debian:12libsolvno fix listedDEBIAN-CVE-2026-9150
Debian:13libsolvno fix listedDEBIAN-CVE-2026-9150
Debian:14libsolv0.7.37-1DEBIAN-CVE-2026-9150
Rocky Linux:10libsolv0:0.7.33-5.el10_2RLSA-2026:28236
Ubuntu:22.04:LTSlibsolvno fix listedUBUNTU-CVE-2026-9150
Ubuntu:24.04:LTSlibsolvno fix listedUBUNTU-CVE-2026-9150
Ubuntu:25.10libsolvno fix listedUBUNTU-CVE-2026-9150
Ubuntu:26.04:LTSlibsolvno fix listedUBUNTU-CVE-2026-9150
Ubuntu:26.10libsolvno fix listedUBUNTU-CVE-2026-9150

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support see references
Red Hat Red Hat Hardened Images see references
Red Hat Red Hat Hardened Images see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat Satellite 6 see references
Red Hat Red Hat Update Infrastructure 4 for Cloud Providers see references

Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References