CVE-2026-9149
Libsolv: heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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).
| CWE | CWE-122 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | May 20, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Hardened Images
All versions affected Red Hat / Red Hat OpenShift Container Platform 4
All versions affected Red Hat / Red Hat Satellite 6
All versions affected Red Hat / Red Hat Update Infrastructure 4 for Cloud Providers
All versions affected References
Credits
This issue was discovered by Found by AISLE in partnership with Red Hat.