CVE-2026-43901: Wireshark MCP is an MCP Server that turns tshark into a structured analysis interface, then layers in optional

Q: How do I fix CVE-2026-43901?

wireshark mcp: upgrade to newer than 1.1.5. Exact commands for each OS are on this page.

Q: Is CVE-2026-43901 being exploited?

CVE-2026-43901 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-43901 affect?

CVE-2026-43901 affects wireshark mcp. Severity is medium (CVSS 6.8). Wireshark MCP is an MCP Server that turns tshark into a structured analysis interface, then layers in optional Wireshark suite utilities. In 1.1.5 and earlier, wireshark-mcp exposes a wireshark_export_objects MCP tool that accepts an attack

Q: How urgent is CVE-2026-43901?

Priority 36/100. Public exploit reference

Routine

MEDIUM 6.8UPGRADE

CVE-2026-43901 is a medium-severity flaw (CVSS 6.8) affecting wireshark mcp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Wireshark MCP is an MCP Server that turns tshark into a structured analysis interface, then layers in optional Wireshark suite utilities. In 1.1.5 and earlier, wireshark-mcp exposes a wireshark_export_objects MCP tool that accepts an attacker-controlled dest_dir parameter and passes it to tshark's --export-objects flag with no mandatory path restriction. The path sandbox (_allowed_dirs) is None by default and only activates when the environment v

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-05-11
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: bx33661

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-11 23:20 UTCPublished CVE record published
2026-10-26 18:10 UTCUpdated Record last modified

bx33661 wireshark mcp UPGRADE

Affected: <= 1.1.5

Fixed in: newer than 1.1.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wireshark-mcp || rpm -q wireshark-mcp || wireshark-mcp --version

2. UPGRADE to newer than 1.1.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wireshark-mcp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wireshark-mcp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-43901?

wireshark mcp: upgrade to newer than 1.1.5. Exact commands for each OS are on this page.

Is CVE-2026-43901 being exploited?

CVE-2026-43901 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-43901 affect?

CVE-2026-43901 affects wireshark mcp. Severity is medium (CVSS 6.8). Wireshark MCP is an MCP Server that turns tshark into a structured analysis interface, then layers in optional Wireshark suite utilities. In 1.1.5 and earlier, wireshark-mcp exposes a wireshark_export_objects MCP tool that accepts an attack

How urgent is CVE-2026-43901?

Priority 36/100. Public exploit reference

References

← Back to latest CVEs