JuggleIM im-server: Weak password hashing with unsalted SHA-1 for admin accounts
Summary
JuggleIM im-server through version 1.8.16 stores admin console passwords as unsalted SHA-1 digests. An attacker who obtains the accounts table, for example through database access or backups, can crack the passwords offline using precomputed tables or GPU brute force. The attack does not require remote access to the service itself, but it requires read access to stored account data.
Affected
- JuggleIM im-server through version 1.8.16
Fixed in
Unknown.
Workaround
- Restrict access to the database and backups that contain the accounts table, and audit who can read them
- Change all admin console passwords to long, unique, random passwords
- Keep the admin console (default port 8090) off the internet and limit access to management networks or VPN
Exploitation
- No known exploitation in the wild
- CISA SSVC assessment: exploitation none, not automatable, partial technical impact
- VulDB reports that no exploit is available
Our recommendation
- Check whether JuggleIM im-server up to version 1.8.16 is in use and where the admin console is reachable
- Limit access to the admin console and to database backups
- Replace admin console passwords with long random passwords and monitor for unauthorized logins
- Watch the vendor repositories for a fixed release and update promptly
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- VulnCheck advisory: JuggleIM im-server weak password hashing www.vulncheck.com
- JuggleIM im-server repository github.com
- im-server sql/imserver.sql at v1.8.16 github.com
- imserver-console services/accountservice.go at v1.0.10 github.com
- OpenCVE: CVE-2026-111330 app.opencve.io
- VulDB: vulnerability 420968 vuldb.com
- Strix: CVE-2026-111330 www.strix.ai
- ThreatInt: CVE-2026-111330 cve.threatint.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 15:55.
Original description (NVD)
JuggleIM im-server through 1.8.16 contains a weak password hashing vulnerability that stores admin console passwords as unsalted SHA-1 digests via tools.SHA1 in services/accountservice.go. Attackers who obtain the accounts table through database access or backups can crack console passwords using precomputed tables or GPU brute force.
NVD references (5)
- https://github.com/juggleim/im-server
- https://github.com/juggleim/im-server/blob/v1.8.16/sql/imserver.sql#L3-L15
- https://github.com/juggleim/imserver-console/blob/v1.0.10/services/accountservice.go#L95
- https://hackmd.io/@hieuPenguinnn/juggleim-im-server-default-admin-credential
- https://www.vulncheck.com/advisories/juggleim-im-server-through-1.8.16-weak-password-hashing-via-unsalted-sha…
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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