CVE-2026-111590 SSRF in Harbor webhook delivery allows ProjectAdmin to reach internal services
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-111590?
CVE-2026-111590 is a vulnerability in Harbor, published on 26 Oct 2026.
Official 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.
Which versions are affected by CVE-2026-111590?
How do I fix CVE-2026-111590?
No fix has been published for CVE-2026-111590 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-111590 being exploited?
There is no known exploitation of CVE-2026-111590 in the wild and no public exploit code.
Sources
Also known as GHSA-2phj-cp9f-qq6w, GHSA-h7v4-fjg7-95fc.