Security Resilience

CVE-2026-111329

Public PoC
Published
15 October 2026
Modified
15 October 2026
CVSS Score v4 9.3
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
EPSS Score 0.0053 44th percentile
Risk Priority 46 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-111329 is a critical-severity Use of Default Credentials (CWE-1392) vulnerability in Hackmd (inferred from references). Its CVSS base score is 9.3 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Protocol or Service Impersonation (T1001.003); ranked at the 44th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

JuggleIM im-server through 1.8.16 ships default administrator credentials admin/123456 that allow unauthenticated remote attackers to access the admin console on port 8090. Attackers can log in as administrator, even after account deletion since CheckLogin recreates it, to control tenant applications…

more

and app secrets.

CWE(s)
CWE-1392

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.003 Protocol or Service Impersonation Command And Control
Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts.
attack.mitre.org →
T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1003.007 Proc Filesystem Credential Access
Adversaries may gather credentials from the proc filesystem or `/proc`.
attack.mitre.org →
T1007 System Service Discovery Discovery
Adversaries may try to gather information about registered local system services.
attack.mitre.org →
T1011.001 Exfiltration Over Bluetooth Exfiltration
Adversaries may attempt to exfiltrate data over Bluetooth rather than the command and control channel.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

Affected Assets

Hackmd
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V13.2.1

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CM-1 Policy and Procedures
addresses: CWE-1392

Mandates replacement of default credentials during secure configuration and provisioning procedures.

IA-1 Policy and Procedures
addresses: CWE-1392

Policy requires changing or avoiding default credentials during system setup and operation.

IA-2 Identification and Authentication (Organizational Users)
addresses: CWE-1392

Unique identification requirement prevents use of default or shared credentials by organizational users.

IA-5 Authenticator Management
addresses: CWE-1392

Changing default authenticators prior to first use prevents use of default credentials.

IA-7 Cryptographic Module Authentication
addresses: CWE-1392

Standards-compliant authentication mechanisms typically prohibit default credentials for cryptographic modules.

PM-30 Supply Chain Risk Management Strategy
addresses: CWE-1392

Consistent implementation of the strategy drives removal or mitigation of default credentials in procured systems and services.

SA-4 Acquisition Process
addresses: CWE-1392

Security functional requirements and acceptance criteria can stipulate that acquired systems must not use default credentials.

SA-5 System Documentation
addresses: CWE-1392

Documentation of known configuration vulnerabilities and secure setup practices reduces reliance on default credentials.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-01 partial match
blocks

Credential management processes directly require replacing or disabling default passwords and keys.

PR.AA-03 partial match
blocks

Authentication policies can enforce non-default credential strength but do not explicitly address initial deployment defaults.

PR.PS-01 partial match
blocks

Hardened baselines and configuration management explicitly prohibit default credentials on deployed systems.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.26 Application security requirements partial match
removes
A.8.28 Secure coding partial match
removes
A.8.9 Configuration management partial match
blocks

The requirement to replace vendor default authentication information immediately after installation directly counters the use of default credentials that attackers commonly target.

References