CVE-2026-81491

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

0.58% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 47.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 2026-08-28.

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

2026-08-27 02:15Z2 MO AGO

Last updated

2026-08-27 14:44Z2 MO AGO

Reserved

2026-08-26

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

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

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.2

Document digest

7fa8abc3ce7e9028dc12e176a377bf80eac043e52b93d4857dfc322e84c74963

• vuldb.comVDB-395981 | boxpositron with-context-mcp index.ts project_folder path traversalhttps://vuldb.com/vuln/395981vdb-entrytechnical-description
• vuldb.comVDB-395981 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/395981/ctisignaturepermissions-required
• vuldb.comCVE-2026-81491 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-81491third-party-advisory
• vuldb.comSubmit #887138 | boxpositron with-context-mcp 3.0.7 Path Traversalhttps://vuldb.com/submit/887138third-party-advisory
• github.comhttp://github.com/boxpositron/with-context-mcp/issues/2exploitissue-tracking