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TI-2026-68506 Aliases CVE-2026-76061

CRI-O bind mount symlink bypass exposes files outside prefixed root

Priority LOW 24CWE-59Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

CRI-O before 1.34.14, from 1.35.0 before 1.35.9, from 1.36.0 before 1.36.6, and from 1.37.0 before 1.37.1 are affected. When a non-empty bind_mount_prefix is configured, a malicious container or local attacker can supply a CRI hostPath with an intermediate absolute symlink, so the bind mount source resolves outside the intended prefixed root (CWE-59). Successful exploitation can lead to unauthorized access to files or privilege escalation on the host.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A flaw was found in CRI-O's `bind_mount_prefix` handling. When configured with a non-empty `bind_mount_prefix`, a malicious container or local attacker could use a Container Runtime Interface (CRI) hostPath containing an intermediate absolute symlink. This could cause the bind mount source to resolve outside the intended prefixed root, potentially leading to unauthorized access to files or privilege escalation on the host system.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0023 13th percentileScored 2026-11-07
Fix Partial cri-o: 1.34.14, 1.35.9, 1.36.6 +1Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—cri-obefore 1.34.14; 1.35.0 to before 1.35.9; 1.36.0 to before 1.36.6; 1.37.0 to before 1.37.11.34.14, 1.35.9, 1.36.6, 1.37.1Patch availableCNA
Red HatRed Hat OpenShift Container Platform 4——No fix listedCNA
Red HatRed Hat OpenShift Container Platform 4——No fix listedCNA
Red HatRed Hat OpenShift Container Platform 4——No fix listedCNA
  • cri-o Vendor— Affected before 1.34.14; 1.35.0 to before 1.35.9; 1.36.0 to before 1.36.6; 1.37.0 to before 1.37.1 Fixed in 1.34.14, 1.35.9, 1.36.6, 1.37.1 Patch available CNA
  • Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:/a:redhat:openshift:44—Red Hat
  • cpe:/a:redhat:openshift:4 Versions 4 — ·Red Hat

Remediation

Update cri-o to 1.34.14, 1.35.9, 1.36.6 or 1.37.1, depending on the release branch in use. Red Hat rates this Moderate, and Red Hat's plan for Red Hat OpenShift Container Platform 4 is none available.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA cri-o Fixed in 1.34.14, 1.35.9, 1.36.6, 1.37.1

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-76061
  2. 2026-10-07 Fix available: [email protected], [email protected], [email protected] +1 · CNA
  3. 2026-10-07 Affected versions changed · Red Hat
  4. 2026-10-07 CVSS score added · Red Hat
  5. 2026-10-07 Priority changed: MEDIUM → LOW
  6. 2026-10-09 CISA SSVC decision points changed

References

Other 5

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences