Skip to content
Fencer Vulns
medium 6.3

CVE-2022-29946 json

NATS Server and Streaming Server fails to enforce negative user permissions, may allow denied subjects

published 2024-07-11 2 y ago modified 2026-06-17 4 mo ago also GHSA-2h2x-8hh2-mfq8 , GO-2024-2980 , EUVD-2024-2224

cvss
6.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

NATS.io NATS Server before 2.8.2 and Streaming Server before 0.24.6 could allow a remote attacker to bypass security restrictions, caused by the failure to enforce negative user permissions in one scenario. By using a queue subscription on the wildcard, an attacker could exploit this vulnerability to allow denied subjects.

Patch / fix

  • go github.com/nats-io/nats-server/v2 2.8.2
  • go github.com/nats-io/nats-streaming-server 0.24.6
  • nats-server Debian 14, Debian 13, Debian 12 2.9.8-1

debian advisories DEBIAN-CVE-2022-29946

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-2022-29946 updated cvss 5.4

nats-server: Negative user permissions not enforced in one scenario

  • Red Hat OpenShift AI (RHOAI) odh-ml-pipelines-driver-container, odh-ml-pipelines-launcher-container, odh-ml-pipelines-api-server-v2-container, odh-ml-pipelines-persistenceagent-v2-container, odh-ml-pipelines-scheduledworkflow-v2-container
    affected: workaround, no fix available “Recraft user permission rules to only add access, never deny it.”
  • Red Hat Openshift Container Storage 4 ocs4/mcg-rhel8-operator, ocs4/ocs-rhel8-operator, ocs4/ocs-must-gather-rhel8
    affected: workaround, no fix planned “Recraft user permission rules to only add access, never deny it.”
  • Red Hat OpenShift Container Platform 4 openshift4/ose-contour-rhel8 Red Hat Trusted Profile Analyzer trustification-guac
    not affected: vulnerable code not present “Recraft user permission rules to only add access, never deny it.”

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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/nats-io/nats-server/v2
<2.8.2
2.8.2
go github.com/nats-io/nats-streaming-server
<0.24.6
0.24.6
go github.com/nats-io/nats-server
all versions
 no fix listed

Classification

Weakness

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.