Open OnDemand didn't rotate password for VNC batch_connect
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Open OnDemand is an open-source HPC portal. Prior to versions 3.1.15 and 4.0.7, noVNC interactive applications did not correctly rotate the password when TurboVNC was higher than version 3.1.2. The likelihood of exploitation is low as a user would need to share their link to an active desktop session and the other user would need to be authenticated to the portal. But obtaining the link would allow that user to perform any actions as the original user and access their data. Open OnDemand 3.1.15 and 4.0.7 have patched this vulnerability and correctly rotate passwords for any version of TurboVNC. As a workaround, downgrade TurboVNC to a version lower than 3.1.2.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA ondemand (OSC) Fixed in 3.1.15, 4.0.7
Timeline
- 2026-10-02 Threatist record created from CVE-2025-58435
More OSC vulnerabilities
- TI-2020-18567 Open OnDemand before 1.5.7 and 1.6.x before 1.6.22 allows CSRF. CVSS 3.1HIGH 8.8
- TI-2025-39628 Open OnDemand RPM packages create world writable locations CVSS 4.0MEDIUM 6.9
- TI-2025-40555 Open OnDemand affected by Apache proxy passing sensitive headers CVSS 3.1HIGH 7.6
- TI-2026-21016 OnDemand susceptible to malicious input when navigating to a directory. CVSS 4.0MEDIUM 6.3
- TI-2026-32328 Open OnDemand: Specially crafted filenames can execute javascript in the file browser CVSS 4.0MEDIUM 5.3
- TI-2025-33562 Open OnDemand Shell App closed websocket DoS CVSS 3.1MEDIUM 5.4
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences