Vulnerability Description
Open OnDemand provides remote web access to supercomputers. In versions 4.0.8 and prior, the Apache proxy allows sensitive headers to be passed to origin servers. This means malicious users can create an origin server on a compute node that record these headers when unsuspecting users connect to it. Maintainers anticipate a patch in a 4.1 release. Workarounds exist for 4.0.x versions. Using `custom_location_directives` in `ood_portal.yml` in version 4.0.x (not available for versions below 4.0) centers can unset and or edit these headers. Note that `OIDCPassClaimsAs both` is the default and centers can set `OIDCPassClaimsAs ` to `none` or `environment` to stop passing these headers to the client. Centers that have an OIDC provider with the `OIDCPassClaimsAs` with `none` or `environment` settings can adjust the settings using guidance provided in GHSA-2cwp-8g29-9q32 to unset the mod_auth_openidc_session cookies.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Osc | Open Ondemand | <= 4.0.8 |
Related Weaknesses (CWE)
References
- https://github.com/OSC/ondemand/security/advisories/GHSA-2cwp-8g29-9q32Vendor AdvisoryMitigation
FAQ
What is CVE-2025-66029?
CVE-2025-66029 is a vulnerability with a CVSS score of 7.6 (HIGH). Open OnDemand provides remote web access to supercomputers. In versions 4.0.8 and prior, the Apache proxy allows sensitive headers to be passed to origin servers. This means malicious users can create...
How severe is CVE-2025-66029?
CVE-2025-66029 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-66029?
Check the references section above for vendor advisories and patch information. Affected products include: Osc Open Ondemand.