CVE-2026-82660

Nodemailer jsonTransport bypasses disableFileAccess and disableUrlAccess

MEDIUM
5.4
CVSS Score
Published: August 31, 2026 at 08:46 AM UTC
Updated: September 10, 2026 at 04:18 PM UTC
1 product affected across 1 vendorNodemailer

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

Nodemailer before 8.0.9 fails to enforce disableFileAccess and disableUrlAccess options during message normalization in jsonTransport. Attackers can read local files or fetch URLs by supplying path or href values in message content fields, bypassing intended access controls.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 8.0.9
Vendor states this is fixed in 8.0.9 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-862

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