Buffer overflow in openSUSE Libsolv
CVE-2026-48864
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (16.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000
Affected products
- openSUSE Libsolv — versions 0.7.36
- Red Hat Discovery 2 — versions 1784821670, 1784821750
- Red Hat Enterprise Linux 10 — versions 0:0.7.33-5.el10_2
- Red Hat Enterprise Linux 10.0 Extended Update Support — versions 0:0.7.29-8.el10_0.1
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 7 Extended Lifecycle Support — versions 0:0.6.34-4.el7_9.1
- Red Hat Enterprise Linux 8 — versions 0:0.7.20-7.el8_10
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support — versions 0:0.7.16-3.el8_4.1
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On — versions 0:0.7.16-3.el8_4.1
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support — versions 0:0.7.20-1.el8_6.1
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-48864 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Exploit, Third Party Advisory, Issue Tracking)
- access.redhat.com/errata/RHSA-2026:21333 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2026:28236 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:36730 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:39315 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:44481 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:46836 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:48814 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:48815 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-48864?
- CVE-2026-48864 is a high-severity vulnerability in openSUSE Libsolv, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-05-26.
- How severe is CVE-2026-48864?
- High severity. CVSS v3 base score is 7.8 out of 10.