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CVE-2025-66029
HIGH · CVSS 7.6
EPSS exploitation probability: 0%
Published 2025-12-17T23:16:04.407 · Last modified 2026-06-17T09:56:12.287

Summary

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` set

Affected products

osc — open_ondemand

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.