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VulnerabilityPublished

CVE-2024-58379: nodemailer · ReDoS

Affects nodemailerSource GCVE Database

0

Not known to be exploited · CVSS 6.9 Medium : upgrade to 6.9.9 when convenient.

Data as of 28 Oct 2026, 00:13 UTC

CVSS 4.0 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 6.9.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index.

What to do

Upgrade nodemailer to 6.9.9.

Affected software

ProductAffectedFixed in
npmnodemailerpkg:npm/nodemailerOther threatsAffected
  • <6.9.9
Fixed in
  • 6.9.9

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in nodemailer version 6.9.9 and later. Users should upgrade to version 6.9.9 or newer to remediate this vulnerability. No other mitigation or workaround information is provided.

Description

A regular expression denial of service (ReDoS) vulnerability exists in nodemailer versions before 6.9.9. This flaw occurs during email parsing when the attachDataUrls parameter is enabled or when processing embedded file attachments. An attacker can exploit this by sending specially crafted emails containing malicious data URLs or embedded attachments, causing the event loop to hang and resulting in a denial of service.

References

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