CVE-2026-17597: Nexus Repository 3 contains a Server-Side Request Forgery (SSRF) vulnerability in the email configuration veri

Routine

LOW 2.7UPGRADE

CVE-2026-17597 is a low-severity flaw (CVSS 2.7) 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 contains a Server-Side Request Forgery (SSRF) vulnerability in the email configuration verification feature. A user holding the nexus:settings:update permission could submit arbitrary host and port values to the email test/verification endpoint, causing the server to attempt outbound network connections to internal or otherwise restricted network addresses. Differences in the server's response could be used to infer whether int

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	2.7 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-08-07
Last modified	2026-09-22

Publisher (CNA): Sonatype · Vendor: sonatype

Last updated 2026-09-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-07 17:17 UTCPublished CVE record published
2026-09-22 16:57 UTCUpdated Record last modified

sonatype nexus repository manager UPGRADE

Affected: >= 3.0.0 and < 3.95.0

Fixed in: 3.95.0

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 3.95.0 (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-2026-17597?

nexus repository manager: upgrade to 3.95.0. Exact commands for each OS are on this page.

Is CVE-2026-17597 being exploited?

CVE-2026-17597 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-2026-17597 affect?

CVE-2026-17597 affects nexus repository manager. Severity is low (CVSS 2.7). Nexus Repository 3 contains a Server-Side Request Forgery (SSRF) vulnerability in the email configuration verification feature. A user holding the nexus:settings:update permission could submit arbitrary host and port values to the email tes

How urgent is CVE-2026-17597?

Priority 15/100. No elevated risk signals yet.

Software pages

Sonatype Nexus vulnerabilities

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References

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