CVE-2025-14874: A flaw was found in Nodemailer

This week

HIGH 7.5REMOTEWATCHLISTUPGRADEDOWNGRADEDOWNGRADE

CVE-2025-14874 is a high-severity flaw (CVSS 7.5) affecting nodemailer, advanced cluster management for kubernetes, ceph storage. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in Nodemailer. This vulnerability allows a denial of service (DoS) via a crafted email address header that triggers infinite recursion in the address parser.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-703
Published	2025-12-18
Last modified	2026-10-27

Publisher (CNA): Red Hat, Inc. · Vendor: nodemailer · redhat

Last updated 2026-10-27 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-18 09:15 UTCPublished CVE record published
2026-10-27 05:16 UTCUpdated Record last modified

nodemailer nodemailer UPGRADE

Affected: < 7.0.11

Fixed in: 7.0.11

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls nodemailer

2. UPGRADE to 7.0.11

npm install nodemailer@">=7.0.11"

redhat advanced cluster management for kubernetes DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy advanced-cluster-management-for-kubernetes || rpm -q advanced-cluster-management-for-kubernetes || advanced-cluster-management-for-kubernetes --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison advanced-cluster-management-for-kubernetes sudo apt install advanced-cluster-management-for-kubernetes=<VERSION_BEFORE_2.0> sudo apt-mark hold advanced-cluster-management-for-kubernetes

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list advanced-cluster-management-for-kubernetes sudo dnf downgrade advanced-cluster-management-for-kubernetes-<VERSION_BEFORE_2.0> sudo dnf versionlock add advanced-cluster-management-for-kubernetes

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat ceph storage DOWNGRADE

Affected: 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

1. Check installed version

apt-cache policy ceph-storage || rpm -q ceph-storage || ceph-storage --version

2. No fixed release: DOWNGRADE to a release before 8.0 (Debian / Ubuntu)

apt-cache madison ceph-storage sudo apt install ceph-storage=<VERSION_BEFORE_8.0> sudo apt-mark hold ceph-storage

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ceph-storage sudo dnf downgrade ceph-storage-<VERSION_BEFORE_8.0> sudo dnf versionlock add ceph-storage

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat developer hub MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy developer-hub || rpm -q developer-hub || developer-hub --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-14874?

nodemailer: upgrade to 7.0.11; advanced cluster management for kubernetes: downgrade or apply the listed mitigation; ceph storage: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-14874 being exploited?

CVE-2025-14874 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-14874 affect?

CVE-2025-14874 affects nodemailer, advanced cluster management for kubernetes, ceph storage. Severity is high (CVSS 7.5). A flaw was found in Nodemailer. This vulnerability allows a denial of service (DoS) via a crafted email address header that triggers infinite recursion in the address parser.

How urgent is CVE-2025-14874?

Priority 53/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Kubernetes vulnerabilities · Ceph vulnerabilities

References

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