CVE-2026-4525
7.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
If a Vault auth mount is configured to pass through the "Authorization" header, and the "Authorization" header is used to authenticate to Vault, Vault forwarded the Vault token to the auth plugin backend. Fixed in 2.0.0, 1.21.5, 1.20.10, and 1.19.16.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| HashiCorp | Vault | 0.11.2 < 2.0.0 | affected |
| HashiCorp | Vault Enterprise | 0.11.2 < 2.0.0 | affected |
Weaknesses
- CWE-201: CWE-201: Insertion of Sensitive Information Into Sent Data
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
Vault: Vault: Information disclosure of authentication tokens via incorrect header handling
Additional References
- https://access.redhat.com/security/cve/CVE-2026-4525
- https://bugzilla.redhat.com/show_bug.cgi?id=2459107
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4525.json
References
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