Vulnerability · Published Aug 7, 2026 · Assigned by Sonatype

CVE-2026-17598Nexus Repository 3 - Improper Input Validation in Scheduled Task Configuration

Medium 5.3

In plain English

A medium-severity security flaw in Nexus Repository 3 from Sonatype. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium

Exploit odds (30 days)0.4%top 66.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Sonatype	Nexus Repository 3	3.91.0 – before 3.95.0

Weakness: CWE-915 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

In plain English

Official description

Affected products (as reported)

References