CVE-2026-114713
Summary
| CVE | CVE-2026-114713 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-08 03:16:33 UTC |
| Updated | 2026-11-08 11:16:32 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 8.6 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Problem Types: CWE-140 | CWE-140 CWE-140 Improper Neutralization of Delimiters
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
| 3.1 | CNA | CVSS | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
NoneIntegrity
HighAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | UnrealIRCd | UnrealIRCd | affected 6.2.7.1 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.openwall.com/lists/oss-security/2026/11/08/1 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| www.unrealircd.org | [email protected] | www.unrealircd.org | |
| forums.unrealircd.org/viewtopic.php | [email protected] | forums.unrealircd.org | |
| www.unrealircd.org/index/news | [email protected] | www.unrealircd.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Solutions
CNA: Upgrade to UnrealIRCd 6.2.7.1 or later. Alternatively, apply the hot-patch to fix the issue without restart: ./unrealircd hot-patch bundle-20261107
Workarounds
CNA: Add the following line to the configuration file of all servers until the patch or upgrade is applied: blacklist-module "labeled-response";
There are currently no legacy QID mappings associated with this CVE.