CVE-2026-14645: Nexus Repository 3 does not validate the destination of the "Webhook: Global" capability's configured URL befo

Routine

MEDIUM 5.5UPGRADE

CVE-2026-14645 is a medium-severity flaw (CVSS 5.5) affecting nexus repository manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nexus Repository 3 does not validate the destination of the "Webhook: Global" capability's configured URL before making an outbound HTTP request, allowing a user holding the Capability Administration permission to cause the server to send requests to internal network locations (Server-Side Request Forgery). This permission is granted by role assignment, independent of authentication status, so an unauthenticated user could also trigger this behav

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-07-14
Last modified	2026-10-24

Publisher (CNA): Sonatype · Vendor: sonatype

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-14 17:16 UTCPublished CVE record published
2026-10-24 21:10 UTCUpdated Record last modified

sonatype nexus repository manager UPGRADE

Affected: >= 3.0.0 and < 3.94.0

Fixed in: 3.94.0

Safe to downgrade to: a release before 3.0.0

1. Check installed version

apt-cache policy nexus-repository-manager || rpm -q nexus-repository-manager || nexus-repository-manager --version

2. UPGRADE to 3.94.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nexus-repository-manager

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nexus-repository-manager

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 3.0.0 (Debian / Ubuntu)

apt-cache madison nexus-repository-manager sudo apt install nexus-repository-manager=<VERSION_BEFORE_3.0.0> sudo apt-mark hold nexus-repository-manager

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list nexus-repository-manager sudo dnf downgrade nexus-repository-manager-<VERSION_BEFORE_3.0.0> sudo dnf versionlock add nexus-repository-manager

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.

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-2026-14645?

nexus repository manager: upgrade to 3.94.0. Exact commands for each OS are on this page.

Is CVE-2026-14645 being exploited?

CVE-2026-14645 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-2026-14645 affect?

CVE-2026-14645 affects nexus repository manager. Severity is medium (CVSS 5.5). Nexus Repository 3 does not validate the destination of the "Webhook: Global" capability's configured URL before making an outbound HTTP request, allowing a user holding the Capability Administration permission to cause the server to send r

How urgent is CVE-2026-14645?

Priority 23/100. No elevated risk signals yet.

Software pages

Sonatype Nexus vulnerabilities

Related CVEs

CVE-2026-11403 HIGH 7.5 UPGRADE A vulnerability in Sonatype Nexus Repository Manager's format-specific API key generation may allow a remote a
CVE-2026-14646 HIGH 7.7 UPGRADE Nexus Repository 3 did not apply its existing Server-Side Request Forgery (SSRF) protections to HTTP redirect
CVE-2026-14504 MEDIUM 6.5 UPGRADE An authorization bypass in Nexus Repository 3's component upload API allowed a user with only read/browse priv
CVE-2026-7494 MEDIUM 5.0 UPGRADE Nexus Repository 3 is vulnerable to Server-Side Request Forgery (SSRF) via the SSL Certificate Retrieval endpo
CVE-2026-17603 HIGH 8.8 UPGRADE Nexus Repository 3 did not sufficiently restrict which HikariCP connection-pool properties could be set throug

References

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