CVE-2025-66029
highpriority · track · 0EPSS 0.002 · 10 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
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references (4)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-66029cnnvd
- https://github.com/OSC/ondemand/security/advisories/GHSA-2cwp-8g29-9q32cnnvd
- https://github.com/OSC/ondemand/security/advisories/GHSA-2cwp-8g29-9q32enisa_euvd
- https://github.com/OSC/ondemand/security/advisories/GHSA-2cwp-8g29-9q32MitigationVendor Advisorynvd
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