CVE-2026-14646: Nexus Repository 3 did not apply its existing Server-Side Request Forgery (SSRF) protections to HTTP redirect

Routine

HIGH 7.7UPGRADE

CVE-2026-14646 is a high-severity flaw (CVSS 7.7) 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 did not apply its existing Server-Side Request Forgery (SSRF) protections to HTTP redirect targets returned by proxy repository upstream servers. Any user with read access to a proxy repository backed by an attacker-controlled or compromised upstream server — including an anonymous user, if anonymous access is enabled — could receive a response from an internal network address or cloud metadata endpoint as repository content, p

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.7 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 78%)
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-2026-14646?

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

Is CVE-2026-14646 being exploited?

CVE-2026-14646 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-2026-14646 affect?

CVE-2026-14646 affects nexus repository manager. Severity is high (CVSS 7.7). Nexus Repository 3 did not apply its existing Server-Side Request Forgery (SSRF) protections to HTTP redirect targets returned by proxy repository upstream servers. Any user with read access to a proxy repository backed by an attacker-contr

How urgent is CVE-2026-14646?

Priority 32/100. High severity

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-2026-14504 MEDIUM 6.5 UPGRADE An authorization bypass in Nexus Repository 3's component upload API allowed a user with only read/browse priv
CVE-2026-14645 MEDIUM 5.5 UPGRADE Nexus Repository 3 does not validate the destination of the "Webhook: Global" capability's configured URL befo
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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