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CVE-2026-19617— Libdm: lvm2: libdm: denial of service via uncontrolled recursion in config parser

CVSS 5.5 · Medium EPSS 0.11% · P1

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2026-19617

Vulnerability Information
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Vulnerability Title
Libdm: lvm2: libdm: denial of service via uncontrolled recursion in config parser
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in libdm. A local attacker could craft a malicious Logical Volume Manager (LVM) metadata configuration with deeply nested structures. This could lead to uncontrolled recursion in the libdm configuration file parser, exhausting the stack and causing any LVM command reading the metadata to crash. This vulnerability results in a Denial of Service (DoS) for affected systems.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Enterprise Linux 10-cpe:/o:redhat:enterprise_linux:10
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
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 Hardened Images-cpe:/a:redhat:hummingbird:1
Red HatRed Hat OpenShift Container Platform 4-cpe:/a:redhat:openshift:4

II. Public POCs for CVE-2026-19617

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III. Intelligence Information for CVE-2026-19617

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Vendor Advisories for CVE-2026-19617 (2)

Same Patch Batch · Red Hat · 2026-08-14 · 11 CVEs total

CVE-2026-742436.5 MEDIUMQuay: unauthenticated secscan notification endpoint in quay when psk is unset
CVE-2026-582246.5 MEDIUMSamba: ctdb fails to do integrity checking of received packets
CVE-2026-742455.9 MEDIUMQuay: unauthenticated exported logs download in quay
CVE-2026-742445.9 MEDIUMQuay: stripe webhook accepts forged events without signature verification in quay
CVE-2026-742405.4 MEDIUMQuay: jwt claim validation bypasses in quay federated robot and sso authentication
CVE-2026-742425.3 MEDIUMQuay: repository notification uuid idor in quay api
CVE-2026-198795.3 MEDIUMIo.undertow/undertow: undertow: http response header integrity issue due to character trun
CVE-2026-742414.8 MEDIUMQuay: ldap referral filter injection in quay external ldap authentication
CVE-2026-130024.4 MEDIUMDnsmasq: infinite loop dos in dnssec nsec/nsec3 type bitmap parsing
CVE-2026-742474.2 MEDIUMQuay: ssrf via build archive_url in quay build api

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-770

V. Comments for CVE-2026-19617

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