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CVE-2026-7811

📛 CVE Title

54yyyu code-mcp MCP File server.py is_safe_path path traversal

⬇ Download JSON ⚠ View as Threat

Description

A vulnerability has been found in 54yyyu code-mcp up to 4cfc4643541a110c906d93635b391bf7e357f4a8. The affected element is the function is_safe_path of the file src/code_mcp/server.py of the component MCP File Handler. Such manipulation leads to path traversal. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.

Overview

State
PUBLISHED
Assigner (CNA)
VulDB
CVSS severity
MEDIUM
CVSS score
CVSS 6.9 / 10 6.9 6.9 / 10
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
Effective score
6.9 / 10 MEDIUM source: CNA overview
CWE(s)
CWE-22
Reserved
2026-05-04
Published
2026-05-05 06:00 UTC
Last updated
2026-05-05 15:41 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/7xxx/CVE-2026-7811.json
Linked Threat
CVE-2026-7811 — CVE-2026-7811

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published
2026-05-05 05:16:00 UTC
NVD last modified
2026-05-05 19:08:20 UTC
NVD CVSS v3.1
CVSS 7.3 / 10 7.3 7.3 / 10 HIGH source: cna@vuldb.com
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Exploitability subscore
3.9 / 10
Impact subscore
3.4 / 10
EPSS score
0.0006 (probability of exploitation in next 30 days)
EPSS percentile
18.83% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

NVD / KEV / EPSS data refreshed 2026-05-25 06:33 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID
EUVD-2026-27215
Assigner
VulDB
Published
May 5, 2026, 4:00:21 AM
Updated
May 5, 2026, 1:41:25 PM
EUVD base score (CVSS 4.0)
6.9 / 10
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
EUVD-reported EPSS
0.0600
Vendors
54yyyu
Products
code-mcp (4cfc4643541a110c906d93635b391bf7e357f4a8)

ENISA description: A vulnerability has been found in 54yyyu code-mcp up to 4cfc4643541a110c906d93635b391bf7e357f4a8. The affected element is the function is_safe_path of the file src/code_mcp/server.py of the component MCP File Handler. Such manipulation leads to path traversal. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.

EUVD references (5)

Affected products (1)
VendorProductVersionsPlatforms
54yyyu code-mcp 4cfc4643541a110c906d93635b391bf7e357f4a8 (affected) —

Vendor references (5)

References embedded in the original CVE record by the assigning CNA.

MITRE references (5) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (3)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

NVD-tagged references (5)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (19)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

  • Microsoft and Adobe Patch Tuesday, February 2026 Security Update Review
    web:blog.qualys.com

    Microsoft's February 2026 Patch Tuesday focuses on closing security gaps that attackers could exploit, reinforcing the importance of timely patching in enterprise environments. Here's a quick…

    2026-05-23 21:14 UTC
  • CISA Warns of Exploited Microsoft Defender 0-Day Flaws
    web:cyberpress.org

    The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .

    2026-05-23 21:14 UTC
  • Nvd - Cve-2026-27811
    web:nvd.nist.gov

    An official website of the United States government Here's how you know

    2026-05-23 21:14 UTC
  • Security Update Guide - Microsoft
    web:portal.msrc.microsoft.com

    The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

    2026-05-23 21:14 UTC
  • Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws
    web:www.bleepingcomputer.com

    Today is Microsoft's February 2026 Patch Tuesday with security updates for 58 flaws, including 6 actively exploited and three publicly disclosed zero-day vulnerabilities.

    2026-05-23 21:14 UTC
  • February's Patch Tuesday release fixes 59 flaws ... - Computerworld
    web:www.computerworld.com

    Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company's Patch Tuesday release for February ...

    2026-05-23 21:14 UTC
  • February 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
    web:www.crowdstrike.com

    Microsoft's February 2026 Patch Tuesday addresses 59 CVEs , featuring six exploited vulnerabilities, three of which were publicly known, and five Critical vulnerabilities.

    2026-05-23 21:14 UTC
  • Microsoft fixes six zero-days on February 2026 Patch Tuesday
    web:www.csoonline.com

    Microsoft highlighted six new and actively exploited vulnerabilities among the 60 fixes issued in today's February Patch Tuesday releases.

    2026-05-23 21:14 UTC
  • Windows 11 February 2026 Patch: KB5077181 and KB5075941 fix zero-days ...
    web:www.notebookcheck.net

    Microsoft's February 2026 Windows 11 updates (KB5077181 and KB5075941) add security patches, bug fixes, and new Secure Boot rollout signals ahead of certificate expirations starting in June 2026 .

    2026-05-23 21:14 UTC
  • Windows 11 April 2026 Update tested: What's new, improved and fixed
    web:www.windowslatest.com

    Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

    2026-05-23 21:14 UTC
  • Microsoft January 2026 Security Updates (FYI) - Microsoft Q&A
    web:learn.microsoft.com

    January 2026 Security Updates This release consists of the following 112 Microsoft CVEs : Tag CVE Base Score CVSS Vector Exploitability FAQs? Workarounds? Mitigations ? Windows Deployment Services CVE - 2026 -0386 SQL Server CVE - 2026 -20803 Windows Hello…

    2026-05-26 02:46 UTC
  • A guide to vulnerability remediation vs mitigation | @Bugcrowd
    web:www.bugcrowd.com

    Vulnerability mitigation is typically considered a temporary or interim solution. While mitigation measures can reduce the immediate risk associated with vulnerabilities, they may not provide a permanent fix . Organizations should aim to prioritize and plan for complete vulnerability remediation whenever feasible and allocate resources accordingly.

    2026-05-26 02:46 UTC
  • April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
    web:www.crowdstrike.com

    Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

    2026-05-26 02:46 UTC
  • CVE: Common Vulnerabilities and Exposures
    web:www.cve.org

    At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

    2026-05-26 02:46 UTC
  • Oracle Critical Patch Update Advisory - April 2026
    web:www.oracle.com

    This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

    2026-05-26 02:46 UTC
  • Microsoft fixes 167 security flaws in April, second biggest Patch ...
    web:www.pcworld.com

    This month's Patch Tuesday includes an actively exploited Office zero-day vulnerability and several critical RCE bugs in Windows and Remote Desktop.

    2026-05-26 02:46 UTC
  • Vulnerability Remediation vs. Mitigation: What are the Differences ...
    web:www.secure.com

    Learn the difference between vulnerability remediation and mitigation , and how a risk-based strategy can strengthen your security posture.

    2026-05-26 02:46 UTC
  • Oracle Patches 450 Vulnerabilities With April 2026 CPU
    web:www.securityweek.com

    Oracle on Tuesday announced the release of 481 new security patches as part of its April 2026 Critical Patch Update (CPU). Across the 28 product families that received security updates, more than 300 patches address vulnerabilities that are remotely exploitable without authentication.

    2026-05-26 02:46 UTC
  • Patch Tuesday May 2026: Security Updates & CVE Analysis
    web:zecurit.com

    Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

    2026-05-26 02:46 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-7811.json.

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