HIGHCVSS 7.5EPSS 0.4%

CVE-2026-4525

CVE-2026-4525 updated by NVD

Published: 2026-04-17
Modified: 2026-10-27
EPSS percentile: 33%
Sources: github-advisory, nvd

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 packages

Ecosystem	Package	Affected versions	Fixed versions
Go	github.com/hashicorp/vault	—	—

Remediation: No patched version is listed by GitHub.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-4525

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.