CVE-2026-90898

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total 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

2.31% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 83.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-18.

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

2026-09-14 10:18Z1 MO AGO

Last updated

2026-09-14 11:19Z1 MO AGO

Reserved

2026-09-14

Assigning CNA

JFROG

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-284Improper Access ControlPillar
• CWE-306Missing Authentication for Critical FunctionBase

Data version

5.2

Document digest

801d79cca860565020641b19f8f01fe38ad4f57d7d3432bf0ed07f5bc90b6f23

• github.comPR #6757: refuse unauthenticated stdio MCP registrationhttps://github.com/maximhq/bifrost/pull/6757patch
• github.comMerge commit for PR #6757https://github.com/maximhq/bifrost/commit/12e170352bd25eab1ae9ba16611f1797d1fd8fdcpatch
• github.comBifrost HTTP v2.1.0 (first release containing the fix)https://github.com/maximhq/bifrost/releases/tag/transports/v2.1.0release-notes
• github.comBifrost repositoryhttps://github.com/maximhq/bifrostproduct