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CVE-2026-9150— Libsolv: stack-based buffer overflow in libsolv's debian metadata parser when handling sha384/sha512 checksums

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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Debian元数据解析器处理特制Debian仓库元数据时存在栈缓冲区溢出，可能导致内存损坏和拒绝服务。

CVSS 6.5 · Medium EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 10

VendorProduct Version RangeStatus
Red Hat Red Hat Enterprise Linux 10 0:0.7.33-5.el10_2< * unaffected
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:0.7.29-8.el10_0.1< * unaffected
Red Hat Red Hat Enterprise Linux 7 any affected
Red Hat Red Hat Enterprise Linux 8 any unaffected
Red Hat Red Hat Enterprise Linux 9 any affected
Red Hat Red Hat Hardened Images 0.7.38-2.hum1< * unaffected
0.7.39-3.hum1< * unaffected
Red Hat Red Hat OpenShift Container Platform 4 any affected
Red Hat Red Hat Satellite 6 any affected
Red Hat Red Hat Update Infrastructure 4 for Cloud Providers any affected
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I. Basic Information for CVE-2026-9150

Vulnerability Information
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Vulnerability Title
Libsolv: stack-based buffer overflow in libsolv's debian metadata parser when handling sha384/sha512 checksums
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in libsolv. This stack-based buffer overflow vulnerability occurs in libsolv's Debian metadata parser when processing specially crafted Debian repository metadata. An attacker could exploit this by providing malicious SHA384 or SHA512 checksum tags, leading to memory corruption and a denial of service (DoS) in the affected system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
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Debian元数据解析器处理特制Debian仓库元数据时存在栈缓冲区溢出，可能导致内存损坏和拒绝服务。
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

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 0:0.7.33-5.el10_2 ~ * cpe:/o:redhat:enterprise_linux:10.2
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:0.7.29-8.el10_0.1 ~ * cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat Red Hat Hardened Images 0.7.38-2.hum1 ~ * cpe:/a:redhat:hummingbird:1
Red Hat Red Hat Hardened Images 0.7.39-3.hum1 ~ * cpe:/a:redhat:hummingbird:1
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4
Red Hat Red Hat Satellite 6 - cpe:/a:redhat:satellite:6
Red Hat Red Hat Update Infrastructure 4 for Cloud Providers - cpe:/a:redhat:rhui:4::el8

II. Public POCs for CVE-2026-9150

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III. Intelligence Information for CVE-2026-9150

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Patches & Fixes for CVE-2026-9150 (1)

Vendor Advisories for CVE-2026-9150 (5)

Other References for CVE-2026-9150 (1)

Same Patch Batch · Red Hat · 2026-05-20 · 3 CVEs total

CVE-2026-9149 6.5 MEDIUM Libsolv: heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .
CVE-2026-9087 6.4 MEDIUM Keycloak: cross-session email verification proof not bound to upstream identity in first-b

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-121

V. Comments for CVE-2026-9150

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