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Fencer Vulns
medium 5.3

CVE-2021-38554 json

Improper Removal of Sensitive Information Before Storage or Transfer in HashiCorp Vault

published 2021-08-13 5 y ago modified 2026-09-10 1 mo ago also BIT-vault-2021-38554 , EUVD-2021-1586 , GHSA-6239-28c2-9mrm , GO-2022-0632

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

HashiCorp Vault and Vault Enterprise’s UI erroneously cached and exposed user-viewed secrets between sessions in a single shared browser. Fixed in 1.8.0 and pending 1.7.4 / 1.6.6 releases.

Patch / fix

  • go github.com/hashicorp/vault 1.6.6, 1.7.4
  • bitnami vault 1.8.0
  • hashicorp vault 1.8.0
  • vault Alpine 3.14 1.7.4-r0

alpine advisories ALPINE-CVE-2021-38554

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • vault Arch Linux 1.9.0-1

arch linux advisories AVG-2294

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-38554 updated cvss 5.3

vault: UI erroneously cached and exposed user-viewed secrets between sessions in a single shared browser

  • Red Hat OpenShift Container Platform 4 openshift4/ose-installer, openshift4/topology-aware-lifecycle-manager-rhel8-operator
    affected: no fix planned “Will not fix”
  • Red Hat Openshift Container Storage 4 ocs4/cephcsi-rhel8, ocs4/mcg-rhel8-operator, ocs4/ocs-rhel8-operator, ocs4/rook-ceph-rhel8-operator
    affected: no fix planned “Out of support scope”
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/logging-loki-rhel8 Red Hat OpenShift Service Mesh 2.0 servicemesh, servicemesh-mixc, servicemesh-mixs, servicemesh-istioctl, servicemesh-pilot-agent, servicemesh-pilot-discovery Red Hat Advanced Cluster Management for Kubernetes 2 vault Red Hat Openshift Data Foundation 4 odf4/cephcsi-rhel9, odf4/mcg-rhel9-operator, odf4/ocs-rhel9-operator, odf4/odf-rhel8-operator, odf4/odr-rhel8-operator, odf4/rook-ceph-rhel8-operator, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.91% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:P/I:N/A:N
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/hashicorp/vault
<1.6.6
>=1.7.0, <1.7.4
1.6.6
1.7.4
bitnami vault
<1.8.0
1.8.0

Classification

Weakness
  • CWE-212 Improper Removal of Sensitive Information Before Storage or Transfer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.