CVE-2026-111590

Unknown

Description

A wide range of Harbor versions allow SSRF via its webhook delivery component which does not properly validate web hook target addresses, allowing usage of private and link-local IP ranges. An authenticated attacker with ProjectAdmin permissions can configure a webhook policy pointing to a private internal address. When a project event fires, Harbor jobservice makes unauthenticated outbound HTTP POST requests to the target. If the target answers with an error status, the response body is written to the webhook execution log, which project members can read, potentially exposing cloud metadata or other network-restricted resources.

SeverityUnknown
CVSS—
Exploit probability—
ProductHarbor
PublishedOct 26, 2026
First seenOct 26, 2026

How to fix

Update
  • Harbor Harbor2.15.3, 2.14.5, 2.13.6 or later

Affected products

ProductAffected versionsFixed in
Harbor Harbor2.15.0 ≤ v < 2.15.3, 2.14.0 ≤ v < 2.14.5, 1.7.0 ≤ v < 2.13.62.15.3, 2.14.5, 2.13.6

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2026-111590 · Harbor · Dark Radar