What is CVE-2026-3048?

CVE-2026-3048 is a low-severity vulnerability in Sonatype Nexus Repository, classified under Deserialization of Untrusted Data. CVSS score: 3.8/10. Published 2026-05-11.

How severe is CVE-2026-3048?

Low severity. CVSS v3 base score is 3.8 out of 10.

SSRF in Sonatype Nexus Repository

CVE-2026-3048

An authenticated administrator who configures or tests LDAP connectivity in Sonatype Nexus Repository Manager versions 3.0.0 through 3.91.1 may be able to initiate unintended server-side connections when interacting with a malicious LDAP server.

Vulnerability class: Insecure Deserialization

Published 2026-05-11 · last modified 2026-10-26.

CVSS v3 metric

CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.5th percentile), scored 2026-11-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.002 · change: -0.001

Affected products

Sonatype Nexus Repository — versions 3.0.0
Sonatype Nexus Repository Manager

Weakness classification (CWE)

References

103e4ec9-0a87-450b-af77-479448ddef11 (Release Notes, patch)
103e4ec9-0a87-450b-af77-479448ddef11 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-3048?: CVE-2026-3048 is a low-severity vulnerability in Sonatype Nexus Repository, classified under Deserialization of Untrusted Data. CVSS score: 3.8/10. Published 2026-05-11.
How severe is CVE-2026-3048?: Low severity. CVSS v3 base score is 3.8 out of 10.