6.2Medium

CVE-2026-128987Dbus: infinite cpu-spin loop in libdbus socket transport when epipe is received during write operations

Red Hat Red Hat Enterprise Linux 10 Published: 2026-11-14 00:06 (17 hours ago)

Description

A flaw was found in dbus. A local attacker can exploit this vulnerability by connecting to an affected service, requesting a response, and stopping socket reads while keeping the connection open. Because the socket transport handles broken pipe write errors as retryable, the application enters a continuous retry loop. This can lead to excessive CPU consumption, resulting in a denial of service (DoS) for the target process.

Weakness (CWE): CWE-835

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 10	—

References and patches

https://access.redhat.com/security/cve/CVE-2026-128987 vdb-entry
RHBZ#2462869 issue-tracking

CVSS score

6.2Medium

Source: redhat · CVSS 3.1

Attack vector: Local
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

All scores (2)

cna	CVSS 3.1	6.2Medium
secalert@redhat.com	CVSS 3.1	6.2Medium

Timeline

ID reserved2026-11-13
Published2026-11-14 00:06
Reached IP-DB2026-11-14 01:03
Last updated2026-11-14 00:17

Assigned by (CNA): redhat
NVD status: Awaiting Analysis

View at source: CVE.org · NVD

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