🛡️ CVE-2026-66409

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 low, integrity none, availability none.

CVSS metrics in full

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

• 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: Low — limited, and the attacker does not choose what is affected.
• Integrity impact: None.
• Availability impact: None.

Weakness class

CVE-2026-66409 is classified as CWE-1391: Use of Weak Credentials. The product uses weak credentials (such as a default key or hard-coded password) that can be calculated, derived, reused, or guessed by an attacker.

Affected software

CVE-2026-66409 is recorded against 1 package.

• unknown

Timeline and source

Published on 10 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

jvn.jp
robot.hellohas.co.jp

Other advisories for this package

unknown has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2022-4995 (9.8 Critical, published 7 Aug 2026)
• CVE-2022-4994 (published 30 Jul 2026)
• CVE-2023-49900 (9.8 Critical, published 16 Jul 2026)
• CVE-2023-49899 (9.8 Critical, published 16 Jul 2026)
• CVE-2022-4989 (published 3 Jul 2026)
• CVE-2022-4990 (published 3 Jul 2026)
• CVE-2022-50973 (9.8 Critical, published 2 Jul 2026)
• CVE-2023-20572 (published 26 Jun 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-1391: Use of Weak Credentials) in other software:

• CVE-2026-66408 (4.6 Medium, published 10 Aug 2026)
• CVE-2026-49852 (8.0 High, published 13 Jul 2026)
• CVE-2026-57473 (published 26 Jun 2026)
• CVE-2026-46623 (8.0 High, published 26 Jun 2026)
• CVE-2026-47325 (published 3 Jun 2026)
• CVE-2026-4377 (published 28 May 2026)
• CVE-2026-35089 (published 27 May 2026)
• CVE-2026-45363 (8.0 High, published 18 May 2026)

Details

Affected Packages

References