CVE-2026-82659

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-31. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 10, 2026

Advisory Details (2)

Auto-updated Aug 31, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

nodemailer before 9.0.1 File Read and SSRF via raw option | Advisories | VulnCheck

https://www.vulncheck.com/advisories/nodemailer-before-9.0.1-file-read-and-ssrf-via-raw-option
github Patch Available🟡 PoC Available

Message-level raw option bypasses disableFileAccess/disableUrlAccess, enabling arbitrary file read and full-response SSRF in the delivered message · Advisory · nodemailer/nodemailer · GitHub

https://github.com/nodemailer/nodemailer/security/advisories/GHSA-p6gq-j5cr-w38f

Vendor Advisories for CVE-2026-82659(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-nodemailer6.10.0+~6.4.17-1 ... 9.0.6+~8.0.1-1 (24 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-nodemailer6.10.0+~6.4.17-1 ... 9.0.6+~8.0.1-1 (17 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-nodemailer6.10.0+~6.4.17-1 ... 9.0.0+~8.0.1-1 (13 versions)9.0.3+~8.0.1-1—
npm(1)
PackageVulnerable rangeFixed inDependents
nodemailer—9.0.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 01:35 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 00:27 UTCEG score recompute
  4. 2026-09-16 23:19 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 10:45 UTCEG score recompute
  7. 2026-09-16 05:15 UTCEPSS rescore
  8. 2026-09-15 09:26 UTCEG score recompute
  9. 2026-09-15 03:12 UTCEPSS rescore
  10. 2026-09-15 03:12 UTCEPSS rescore
  11. 2026-09-13 19:44 UTCEG score recompute
  12. 2026-09-12 18:36 UTCEG score recompute
  13. 2026-09-11 17:28 UTCEG score recompute
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-10 13:13 UTCEG score recompute
  17. 2026-09-08 23:31 UTCEG score recompute
  18. 2026-09-08 22:01 UTCEPSS rescore
  19. 2026-09-08 03:42 UTCEG score recompute
  20. 2026-09-06 13:57 UTCEG score recompute
  21. 2026-09-06 13:48 UTCEPSS rescore
  22. 2026-09-06 01:23 UTCEG score recompute
  23. 2026-09-05 15:31 UTCEPSS rescore
  24. 2026-09-05 00:14 UTCEG score recompute
  25. 2026-09-04 11:40 UTCEG score recompute
Show 19 more
  1. 2026-09-04 05:07 UTCEPSS rescore
  2. 2026-09-02 21:53 UTCEG score recompute
  3. 2026-09-02 14:12 UTCEPSS rescore
  4. 2026-09-02 09:13 UTCGHSA enrichment
  5. 2026-09-01 20:39 UTCEG score recompute
  6. 2026-09-01 20:39 UTCGHSA enrichment
  7. 2026-09-01 13:54 UTCEPSS rescore
  8. 2026-09-01 08:05 UTCEG score recompute
  9. 2026-09-01 08:04 UTCGHSA enrichment
  10. 2026-09-01 04:40 UTCEPSS rescore
  11. 2026-09-01 04:40 UTCEPSS rescore
  12. 2026-08-31 19:28 UTCEG score recompute
  13. 2026-08-31 19:28 UTCGHSA enrichment
  14. 2026-08-31 18:55 UTCEG score recompute
  15. 2026-08-31 18:55 UTCGHSA enrichment
  16. 2026-08-31 09:37 UTCEG score recompute
  17. 2026-08-31 09:37 UTCGHSA enrichment
  18. 2026-08-31 08:55 UTCEG score recompute
  19. 2026-08-31 08:52 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-82659?
CVE-2026-82659 is a high vulnerability published on August 31, 2026. 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…
When was CVE-2026-82659 disclosed?
CVE-2026-82659 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82659 actively exploited?
CVE-2026-82659 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 82.7% of all scored CVEs.
What is the CVSS score of CVE-2026-82659?
CVE-2026-82659 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-82659?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82659, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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