
CVE catalog
CVE-2026-4525
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 back
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.41% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | vault | Not reported | 1.19.16 | fixed |
| Cpe | vault | Not reported | 2.0.0 | fixed |
| Cpe | vault | Not reported | 1.20.10 | fixed |
| Cpe | vault | Not reported | 1.21.5 | fixed |
| Cpe | vault | Not reported | 1.21.5 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | vault | cpe | Not reported | 1.19.16 | Not reported | Not reported | Not reported |
| Cpe | vault | cpe | Not reported | 2.0.0 | Not reported | Not reported | Not reported |
| Cpe | vault | cpe | Not reported | 1.20.10 | Not reported | Not reported | Not reported |
| Cpe | vault | cpe | Not reported | 1.21.5 | Not reported | Not reported | Not reported |
| Cpe | vault | cpe | Not reported | 1.21.5 | Not reported | NVD-CVE-2026-4525 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://access.redhat.com/security/cve/CVE-2026-4525]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2459107]
- [https://discuss.hashicorp.com/t/hcsec-2026-07-vault-may-expose-tokens-to-auth-plugins-due-to-incorrect-header-sanitization/77344]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-4525]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4525.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1164.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]