Vulnerability in Nodemailer
CVE-2026-82659
nodemailer before 9.0.1 fails to apply disableFileAccess and disableUrlAccess flags to message-level raw option, allowing authenticated attackers to read arbitrary files or perform server-side request forgery by supplying path or href properties. Attackers can exploit this by crafting raw messages with file paths or URLs that bypass the intended sandbox, with fetched content delivered in the outgoing message to attacker-controlled recipients.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (26.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/nodemailer/nodemailer/security/advisories/GHSA-p6gq-j5cr-w38f (vendor-advisory)
- www.vulncheck.com/advisories/nodemailer-before-9.0.1-file-read-and-ssrf-via-raw… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-82659?
- CVE-2026-82659 is a high-severity vulnerability in Nodemailer, classified under External Control of File Name or Path. CVSS score: 7.1/10. Published 2026-08-31.
- How severe is CVE-2026-82659?
- High severity. CVSS v3 base score is 7.1 out of 10.