Medium [CVE-2026-82660] Information Disclosure via jsonTransport Access Control Bypass
This medium-severity Red Hat Linux advisory covers CVE-2026-82660 affecting Red Hat Developer Hub, Self-service automation portal 2.
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Summary
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.
A flaw was found in Nodemailer, a module for sending emails. The jsonTransport component, responsible for handling message data, does not correctly enforce security options designed to prevent unauthorized file and URL access.
A remote attacker could exploit this by sending specially crafted messages containing malicious file paths or URLs. This bypasses the intended security controls, potentially allowing the attacker to read sensitive local files or access external web resources, leading to unauthorized information disclosure.
Red Hat severity: Moderate — CVSS 5.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N). Weakness: CWE-472.
Affected Red Hat products: Red Hat Developer Hub; Self-service automation portal 2. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Hardened Images as not affected.
Red Hat does not currently list a fixing RHSA for this CVE.
- < 8.0.9
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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