CVE-2021-23400

unknown

Published 2021-12-10 · Modified 2025-01-14

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

The package nodemailer before 6.6.1 are vulnerable to HTTP Header Injection if unsanitized user input that may contain newlines and carriage returns is passed into an address object.

Predictions

Exploit likelihood

30%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`6.4.17-3`
debian	bullseye	fixed	`6.4.17-3`
debian	forky	fixed	`6.4.17-3`
debian	sid	fixed	`6.4.17-3`
debian	trixie	fixed	`6.4.17-3`

Package impact

Ecosystem	Package	Vulnerable	Fixed
npm	nodemailer	`<6.6.1`	`6.6.1`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.