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CVE-2026-48864— Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data

CVSS 7.8 · High EPSS 0.01% · P1
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I. Basic Information for CVE-2026-48864

Vulnerability Information
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Vulnerability Title
Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
libsolv 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libsolv是openSUSE开源的一个用于检查软件包依赖的库。 libsolv存在安全漏洞，该漏洞源于解压攻击者控制的压缩数据时输入验证不足，导致堆缓冲区溢出，可能导致信息泄露、程序执行更改或拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Hardened Images 0.7.38-2.hum1 ~ * cpe:/a:redhat:hummingbird:1
Red HatRed Hat Enterprise Linux 10-cpe:/o:redhat:enterprise_linux:10
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 9-cpe:/o:redhat:enterprise_linux:9
Red HatRed Hat OpenShift Container Platform 4-cpe:/a:redhat:openshift:4
Red HatRed Hat Satellite 6-cpe:/a:redhat:satellite:6
Red HatRed Hat Update Infrastructure 4 for Cloud Providers-cpe:/a:redhat:rhui:4::el8

II. Public POCs for CVE-2026-48864

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III. Intelligence Information for CVE-2026-48864

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Vendor Advisories for CVE-2026-48864 (2)

Other References for CVE-2026-48864 (1)

Same Patch Batch · Red Hat · 2026-05-26 · 7 CVEs total

CVE-2026-73749.9 CRITICALKubevirt: kubevirt virt-handler: privilege escalation and node compromise via symlink foll
CVE-2026-44808.5 HIGHSamba: samba: remote code execution in printing subsystem via unescaped job description
CVE-2026-420138.2 HIGHGnutls: gnutls: certificate validation bypass due to oversized subject alternative name
CVE-2026-52608.2 HIGHGnutls: gnutls: information disclosure via heap overread in rsa key exchange
CVE-2026-420127.1 HIGHGnutls: gnutls: certificate validation bypass due to improper handling of uri and srv sans
CVE-2026-420155.3 MEDIUMGnutls: gnutls: memory corruption due to off-by-one error in pkcs#12 bag handling

IV. Related Vulnerabilities

Same product: Red Hat Hardened Images
Same vendor: Red Hat
Same weakness: CWE-787

V. Comments for CVE-2026-48864

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