A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.

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Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

History

Thu, 28 May 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Opensuse
Opensuse libsolv
CPEs cpe:2.3:a:opensuse:libsolv:0.7.36:*:*:*:*:*:*:*
cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:satellite:6.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:update_infrastructure:4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Vendors & Products Opensuse
Opensuse libsolv

Thu, 28 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 28 May 2026 03:00:00 +0000

Type Values Removed Values Added
References

Wed, 27 May 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat hardened Images
Redhat openshift Container Platform
Redhat update Infrastructure
Vendors & Products Redhat hardened Images
Redhat openshift Container Platform
Redhat update Infrastructure

Wed, 27 May 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 26 May 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 26 May 2026 17:00:00 +0000

Type Values Removed Values Added
Description A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.
Title Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
Redhat rhui
Redhat satellite
Weaknesses CWE-787
CPEs cpe:/a:redhat:hummingbird:1
cpe:/a:redhat:openshift:4
cpe:/a:redhat:rhui:4::el8
cpe:/a:redhat:satellite:6
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
Redhat rhui
Redhat satellite
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-05-28T13:28:44.209Z

Reserved: 2026-05-25T20:59:30.306Z

Link: CVE-2026-48864

cve-icon Vulnrichment

Updated: 2026-05-26T17:22:57.983Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-26T17:16:54.050

Modified: 2026-05-28T19:22:42.087

Link: CVE-2026-48864

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-05-26T16:07:55Z

Links: CVE-2026-48864 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-27T10:04:51Z

Weaknesses