CVE-2026-17598
Received Received - Intake

Privilege Escalation in Sonatype Nexus Repository 3

Publication date: 2026-08-07

Last updated on: 2026-08-07

Assigner: Sonatype

Description
Sonatype Nexus Repository 3 did not properly filter internal configuration keys from user-supplied task properties when creating or updating a scheduled task through the administrative UI. An account holding permission to create at least one scheduled task type could supply a crafted property value that caused the system to overwrite the configuration of an unrelated, existing task instead of creating a new one.

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Meta Information

Published
2026-08-07
Last Modified
2026-08-07
Generated
2026-08-07
AI Q&A
2026-08-07
EPSS Evaluated
N/A
NVD
CVE-2026-17598
EUVD
EUVD-2026-54517

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
sonatype nexus_repository From 3.91.0 (inc) to 3.94.x (inc)
sonatype nexus_repository 3.95.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-915 The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified.

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Executive Summary

This vulnerability in Sonatype Nexus Repository 3 allows an attacker with permission to create scheduled tasks to overwrite the configuration of an unrelated existing task by supplying crafted property values in the administrative UI. This occurs due to improper input validation in task configuration.

Detection Guidance

Check Nexus Repository versions 3.91.0 through 3.94.x for unauthorized task modifications via administrative UI logs. Review scheduled tasks for unexpected changes in configuration or execution schedules. Verify permissions assigned to accounts with nexus:tasks:create access.

Impact Analysis

An attacker could redirect, reschedule, or alter existing tasks without direct permission to manage them. This may disrupt system operations, cause data loss, or lead to unauthorized actions depending on the affected tasks.

Compliance Impact

This vulnerability could impact compliance with standards like GDPR and HIPAA by allowing unauthorized task modifications. An attacker with limited permissions could alter scheduled tasks, potentially disrupting data processing workflows or enabling unauthorized access to sensitive data. This may violate requirements for data integrity, access control, and audit logging in regulated environments.

Mitigation Strategies

Upgrade to Nexus Repository version 3.95.0 or later. Restrict the nexus:tasks:create permission to only trusted administrators. Monitor scheduled tasks for unauthorized modifications and review access logs for suspicious activity.

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