CVE-2026-59804

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.30% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 23.3% of scored records. A rank, not a probability.

NVD base score

7.6 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-10-25.

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

2026-07-08 19:42Z3 MO AGO

Last updated

2026-10-08 15:51Z21 DAYS AGO

Reserved

2026-07-07

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 7.6)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-306Missing Authentication for Critical FunctionBase
• CWE-1385Missing Origin Validation in WebSocketsVariant

Data version

5.2

Document digest

1928340614ea157e703072673e6f3a91d1bef774d5629e9999879ebc4812e77e

• github.comResearcher Disclosurehttps://github.com/web-infra-dev/midscene/issues/2752technical-descriptionexploit
• github.comFix PRhttps://github.com/web-infra-dev/midscene/pull/2759issue-tracking
• github.comFix Commithttps://github.com/web-infra-dev/midscene/commit/86f4118d1d847041c63d79e347e08c87c3f1a882patch
• www.vulncheck.comhttps://www.vulncheck.com/advisories/midscene-bridge-server-session-hijack-via-unauthenticated-websocketthird-party-advisory