High severity7.5NVD Advisory· Published Apr 17, 2026· Updated Jul 15, 2026
CVE-2026-4525
CVE-2026-4525
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/hashicorp/vaultGo | >= 0.11.2, <= 1.21.4 | — |
Affected products
10- osv-coords8 versionspkg:apk/chainguard/splunk-otel-collectorpkg:apk/chainguard/splunk-otel-collector-fipspkg:apk/chainguard/vault-2.0pkg:apk/chainguard/vault-fips-2.0pkg:apk/wolfi/splunk-otel-collectorpkg:bitnami/vaultpkg:golang/github.com/hashicorp/vaultpkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0
< 0.157.0-r0+ 7 more
- (no CPE)range: < 0.157.0-r0
- (no CPE)range: < 0.157.0-r0
- (no CPE)range: < 2.0.3-r1
- (no CPE)range: < 2.0.3-r1
- (no CPE)range: < 0.157.0-r0
- (no CPE)range: >= 0.10.0, < 2.0.0
- (no CPE)range: >= 0.11.2, <= 1.21.4
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
6- discuss.hashicorp.com/t/hcsec-2026-07-vault-may-expose-tokens-to-auth-plugins-due-to-incorrect-header-sanitization/77344nvdVendor AdvisoryWEB
- github.com/advisories/GHSA-72gw-fmmr-c4r4ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-4525ghsaADVISORY
- access.redhat.com/security/cve/CVE-2026-4525nvdWEB
- bugzilla.redhat.com/show_bug.cginvdWEB
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4525.jsonnvdWEB
News mentions
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