6.5
Medium
CVE-2026-9149 Libsolv: heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file
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).
CVSS 3.1 detail
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitable remotely over the network, without an account and if a user takes an action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- Interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat Hardened Images 0.7 | earliest → < 0.7.38-2.hum1 | 0.7.38-2.hum1 |
| Red Hat OpenShift Container Platform 4 | Versions not published | |
| Red Hat Satellite 6 | Versions not published | |
| Red Hat Update Infrastructure 4 for Cloud Providers | Versions not published | |
| Red Hat Enterprise Linux 10.0 Extended Update Support | Versions not published |
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| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat OpenShift AI (RHOAI) | Versions not published |
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