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Fencer Vulns
medium 5.9

CVE-2023-5954 json

Vault Requests Triggering Policy Checks May Lead To Unbounded Memory Consumption

published 2023-11-09 2 y ago modified 2026-09-10 1 mo ago also BIT-vault-2023-5954 , EUVD-2023-2881 , GHSA-4qhc-v8r6-8vwm , GO-2023-2329

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

HashiCorp Vault and Vault Enterprise inbound client requests triggering a policy check can lead to an unbounded consumption of memory. A large number of these requests may lead to denial-of-service. Fixed in Vault 1.15.2, 1.14.6, and 1.13.10.

Patch / fix

  • go github.com/hashicorp/vault 1.13.10, 1.14.6, 1.15.2
  • bitnami vault 1.13.10, 1.14.6, 1.15.2
  • hashicorp vault 1.13.10, 1.14.6, 1.15.2

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-2023-5954 updated cvss 5.9

vault: inbound client requests can trigger a denial of service

  • Red Hat Openshift Data Foundation 4 odf4/odf-rhel8-operator
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 4.17 openshift4/ose-installer-rhel9 v4.17.0-202409122204.p0.gdfd4c08.assembly.stream.el9
    fixed: vendor fix RHSA-2024:3718
  • Red Hat RHODF 4.15 for RHEL 9 odf4/mcg-rhel9-operator v4.15.0-39
    fixed: vendor fix RHSA-2024:1383
  • Red Hat OpenShift Container Platform 4.17 rhcos 417.94.202409121747-0, openshift4/frr-rhel9 v4.17.0-202409100034.p0.g377d02f.assembly.stream.el9, openshift4/ose-cli-rhel9 v4.17.0-202409111134.p0.gbc58b3a.assembly.stream.el9, openshift4/ose-pod-rhel9 v4.17.0-202409121706.p0.gd3adea4.assembly.stream.el9, openshift4/ose-etcd-rhel9 v4.17.0-202409100034.p0.g1fb3165.assembly.stream.el9, openshift4/ose-tests-rhel9 v4.17.0-202409130304.p0.g08f2f5f.assembly.stream.el9, +182 more Red Hat Openshift Data Foundation 4 odf4/ocs-rhel9-operator, odf4/odr-rhel9-operator, odf4/rook-ceph-rhel9-operator, odf4/odf-multicluster-rhel9-operator Red Hat RHODF 4.15 for RHEL 9 odf4/cephcsi-rhel9 v4.15.0-37, odf4/odf-cli-rhel9 v4.15.0-22, odf4/mcg-core-rhel9 v4.15.0-68, odf4/odf-console-rhel9 v4.15.0-57, odf4/ocs-rhel9-operator v4.15.0-79, odf4/odf-rhel9-operator v4.15.0-19, +19 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

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
go github.com/hashicorp/vault
<1.13.10
>=1.14.0, <1.14.6
>=1.15.0, <1.15.2
1.13.10
1.14.6
1.15.2
bitnami vault
>=1.13.7, <1.13.10
>=1.14.3, <1.14.6
>=1.15.0, <1.15.2
1.13.10
1.14.6
1.15.2

Affected products

  • HashiCorp Vault
  • HashiCorp Vault Enterprise

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime

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.