High [CVE-2026-2035366] Application credential tokens can escape project scope via token-method reauthentication
This high-severity Red Hat Linux advisory covers CVE-2026-2035366.
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Summary
Application credential tokens can escape project scope via token-method reauthentication. Red Hat rates this important (CVSS 7.1).
Weakness: CWE-863.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Set the following in keystone.conf to prevent exchanging a scoped token for a token with a different project scope: [token] allow_rescope_scoped_token = False This blocks the application-credential default-project fallback. It also prevents Horizon project switching for users who authenticate with a scoped token. This setting does not disable application credentials themselves.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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