SEPTEMBER 14, 2026
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Case File

CVE-2026-88265

MEDIUM · CVSS 5.6 EPSS 0.12% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-10 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

A vulnerability in crun allows an attacker to exploit symlink handling after a pivot_root operation, potentially linking a host file to container stdio and altering its ownership. This could lead to unauthorized access or manipulation of host files from within a container. Organizations using crun versions 1.29.1 and earlier should prioritize addressing this issue, especially those with configurations that do not mount a fresh /dev.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-88265
Severity
MEDIUM
CVSS
5.6
EPSS
0.12%

Original NVD Description

A flaw was found in crun. After pivot_root, reopening /dev/null for stdio can follow a symlink and attach a host file to container stdio, then change that file's ownership. 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.