🛡️ CVE-2026-4404 — harbor

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2026-4404 is classified as CWE-1393: Use of Default Password. The product uses default passwords for potentially critical functionality.

Affected software

CVE-2026-4404 is recorded against 2 packages.

• github.com/goharbor/harbor
• harbor

Timeline and source

Published on 23 March 2026 and last revised on 17 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
goharbor.io (Web)
www.kb.cert.org (Web)

Other advisories for this package

github.com/goharbor/harbor has other advisories on record. If you are patching this one, these are worth checking on the same host:

• GO-2026-4876 (published 2 Apr 2026)
• GHSA-prh4-vhfh-24mj (published 26 Mar 2026)
• CVE-2025-30086 (published 23 Jul 2025)
• CVE-2025-32019 (published 23 Jul 2025)
• CVE-2022-31668 (8.0 High, published 14 Nov 2024)
• CVE-2019-16097 (published 21 Aug 2024)
• CVE-2019-19029 (published 21 Aug 2024)
• CVE-2019-19026 (published 21 Aug 2024)

Same weakness in other software

These advisories are the same class of weakness (CWE-1393: Use of Default Password) in other software:

• CVE-2026-5269 (9.8 Critical, published 14 Jul 2026)
• CVE-2026-54445 (published 13 Jul 2026)
• CVE-2026-2635 (9.5 Critical, published 29 Jun 2026)
• CVE-2026-35075 (9.8 Critical, published 3 Jun 2026)
• CVE-2026-8672 (5.1 Medium, published 22 May 2026)
• CVE-2026-33784 (9.8 Critical, published 9 Apr 2026)
• CVE-2025-14917 (6.7 Medium, published 25 Mar 2026)
• CVE-2026-3186 (6.3 Medium, published 25 Feb 2026)

Details

Affected Packages

References