CVE-2026-87090

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 30.8% of scored records. A rank, not a probability.

NVD base score

8.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-10.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-10 18:54Z1 MO AGO

Last updated

2026-09-10 19:02Z1 MO AGO

Reserved

2026-09-08

Assigning CNA

HashiCorp

Record state

PUBLISHED

Severity

High (CVSS 8.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Weaknesses

• CWE-863Incorrect AuthorizationClass

Data version

5.2

Document digest

a3eaf2d0cccbecbfeae0a9c9223e5b58367b7875be5746da7be0688583398ede

• discuss.hashicorp.comhttps://discuss.hashicorp.com/t/hcsec-2026-34-consul-vulnerable-to-an-authorization-bypass-in-the-catalog-node-write-path/77736