CVE-2026-9149

Name: CVE-2026-9149
Creator: NVD / NIST
Published: 2026-05-21T00:16:35.63+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.29%

Last modified Jun 27, 2026

CVE-2026-9149 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory allocation and a subsequent out-of-bounds write. An attacker could exploit this to cause a denial of service (DoS).

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.29%

20.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-122

Affected Software

Vendor	Product	Versions
Opensuse	Libsolv	<= 0.7.36
Redhat	Hardened Images	All versions
Redhat	Openshift Container Platform	4.0
Redhat	Satellite	6.0
Redhat	Update Infrastructure	4
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0
Redhat	Enterprise Linux	10.0

References

https://access.redhat.com/errata/RHSA-2026:21333
https://access.redhat.com/errata/RHSA-2026:28236
https://access.redhat.com/security/cve/CVE-2026-9149Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2460380Issue Tracking, Third Party Advisory
https://github.com/openSUSE/libsolv/pull/617Issue Tracking, Patch
https://github.com/openSUSE/libsolv/pull/617Issue Tracking, Patch

Timeline

Published: May 21, 2026
Last Modified: Jun 27, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-9149?

How severe is CVE-2026-9149?

CVE-2026-9149 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2026-9149?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-9149?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST