Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-114713

UnrealIRCd · Vulnerability

CVSS 3.1 8.6 HIGHCheck source for fixed versionsCISA KEV

Original advisory

cve-program · CVE-2026-114713

Published

The labeled-response module in UnrealIRCd 6.0.0 before 6.2.7.1 does not escape the IRCv3 "label" message tag when echoing it into replies, which allows any user on a network with two or more linked servers to inject server-to-server commands that are executed with server authority.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-114713

Published

UnrealIRCd

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "modules": [
                        "labeled-response"
                    ],
                    "product": "UnrealIRCd",
                    "programFiles": [
                        "src/modules/labeled-response.c"
                    ],
                    "programRoutines": [
                        {
                            "name": "labeled_response_mtag_is_ok()"
                        }
                    ],
                    "repo": "https://github.com/unrealircd/unrealircd",
                    "vendor": "UnrealIRCd",
                    "versions": [
                        {
                            "lessThan": "6.2.7.1",
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON