CVE record · CVE-2026-9149

Libsolv: heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file

CVSS 6.5 MediumEPSS 0.0031 · 24th percentile

Published by the CVE Program (CNA: redhat) at 20 May 2026, 23:34 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 10 Package name: libsolv https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.7.33-5.el10_2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support Package name: libsolv https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.7.29-8.el10_0.1 to before * rpm Other versions: affected
Red Hat	Red Hat Hardened Images Package name: libsolv-main https://catalog.redhat.com/software/containers/	unaffected 0.7.38-2.hum1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 7 Package name: libsolv https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: libsolv https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: libsolv https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-8 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Satellite 6 Package name: satellite-capsule:el8/libsolv https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Update Infrastructure 4 for Cloud Providers Package name: libsolv https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected

Identifiers: CVE-2026-9149
CNA: redhat
Weakness (CWE): CWE-122
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Hardened Images
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat OpenShift Container Platform 4
Red Hat Satellite 6
Memory corruption
Published: 20 May 2026
Updated: 1 Sept 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.5	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0031, the 24th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 20 May 2026. New records show when each source confirmed them.

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:21333 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:28236 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:48818 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-9149 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2460380 issue-trackingredhat
github.com/openSUSE/libsolv/pull/617

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.