CVE-2026-103505

LOWCVSS 6.9 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Improper neutralization of argument delimiters in the volume handling component in AWS EFS CSI Driver (aws-efs-csi-driver) v3.1.0 through v3.4.2 might allow remote authenticated users with PersistentVolume creation permissions to inject arbitrary mount options via comma-separated values in the mounttargetipmap volumeAttribute. To remediate this issue, users should upgrade to version v3.5.0 or later.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-88

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Full discourse1 post

Xavier Rivera@XavierRiveraX1d
Kubernetes PV create just became a mount-option injection path on Amazon EFS CSI. CVE-2026-103505: abuse mounttargetipmap, append comma-separated values, mount parses them as extra options. Hits v3.1.0 through v3.4.2. Move to v3.5.0 and tighten who can create PersistentVolumes.
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