5.6Medium

CVE-2026-88264Crun: crun: /dev/console symlink follow allows root-owned file creation outside the rootfs

containers crun; Red Hat Red Hat Hardened Images; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 8 Published: 2026-09-10 11:40 (2 months ago)

Description

A flaw was found in crun. When the container configuration does not give /dev a dedicated mount, terminal setup can redirect /dev/console onto an attacker-controlled path, including via the read-only-rootfs bind-mount fallback. Affected versions are crun 1.29.1 and earlier. Default configurations that mount a fresh /dev are not exposed. No fixed release is available yet.

Weakness (CWE): CWE-59

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

Affected products and versions

Vendor	Product	Versions
containers	crun	≤ 1.29.1
Red Hat	Red Hat Enterprise Linux 10	all versions
Red Hat	Red Hat Enterprise Linux 8	all versions
Red Hat	Red Hat Enterprise Linux 9	all versions
Red Hat	Red Hat Hardened Images	all versions
Red Hat	Red Hat OpenShift Container Platform 4	all versions
Red Hat	Red Hat OpenShift Container Platform 5	all versions

References and patches

RHSA-2026:71668 vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-88264 vdb-entry
RHBZ#2531223 issue-tracking
https://github.com/containers/crun/

CVSS score

5.6Medium

Source: redhat · CVSS 3.1

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

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

All scores (2)

cna	CVSS 3.1	5.6Medium
secalert@redhat.com	CVSS 3.1	5.6Medium

EPSS (chance of exploitation in 30 days)

0.12%

higher than 2% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: no
Technical impact: partial

Timeline

ID reserved2026-09-10
Published2026-09-10 11:40
Reached IP-DB2026-10-24 23:41
Last updated2026-11-06 05:17

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

View at source: CVE.org · NVD

Get told when these products get a new vulnerability

Turn on email alerts

Free · with an account · switch off any time

Recent CVEs in the same product — Red Hat Enterprise Linux

6.2Medium

CVE-2026-128886 13 hours ago

Dbus: server accept watch can be stalled by blocking nonce-tcp accept_with_noncefile path

Red Hat Red Hat Enterprise Linux 10

A flaw was found in dbus when configured with the nonce-tcp transport. An unauthenticated attacker able to connect to an exposed listener can cause a Denial of Service (DoS) by opening a connection and withholding the expected authentication token. Because th…

5.5Medium

CVE-2026-110330 13 hours ago

Abrt: abrt: abrt-server trusts client-supplied pid= allowing unprivileged read of other processes' /proc environ

Red Hat Red Hat Enterprise Linux 6; Red Hat Red Hat Enterprise Linux 7; Red Hat Red Hat Enterprise Linux 8

A flaw was found in abrt. abrt-server trusts a client-supplied PID when creating problem dumps over abrt.socket and, running as root, copies that process's /proc data (including environ) into a dump directory owned by the connecting unprivileged user. This al…

7.8High

CVE-2026-110331 13 hours ago

Abrt: abrt: incomplete cve-2026-54228/54229 fix — completeness gate bypassed via attacker-supplied count element

Red Hat Red Hat Enterprise Linux 6; Red Hat Red Hat Enterprise Linux 7; Red Hat Red Hat Enterprise Linux 8

A flaw was found in abrt. The completeness check introduced to mitigate CVE-2026-54228 and CVE-2026-54229 only verifies that a dump directory contains a "count" element, which an unprivileged user can create. This allows a local attacker to bypass the guard a…

6.2Medium

CVE-2026-128987 14 hours ago

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

Red Hat Red Hat Enterprise Linux 10

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 a…

5.5Medium

CVE-2026-128885 14 hours ago

Dbus: stack out-of-bounds write in dbus _dbus_poll() select() fallback when file descriptor exceeds fd_setsize

Red Hat Red Hat Enterprise Linux 10

A flaw was found in D-Bus. In configurations where the daemon falls back to using the Unix select() mechanism for event monitoring, it does not verify whether file descriptor numbers exceed allocated limits. A local attacker can exploit this flaw by opening a…

8.8High

CVE-2026-18379 yesterday

Yggdrasil-worker-package-manager: yggdrasil-worker-package-manager: path traversal via unsanitized repo name in addrepo/removerepo

Red Hat Red Hat Enterprise Linux 10

A flaw was found in yggdrasil-worker-package-manager. An authenticated attacker can exploit this issue to achieve arbitrary file modification or potential privilege escalation. The vulnerability exists because repository management operations fail to sanitize…