CVE-2026-33217Medium
CVE
CVE
National Vulnerability Database
NVD is the U.S. government repository of standards-based vulnerability management data, built on top of the MITRE CVE list. Every record includes CPE applicability statements, CVSS v2 and v3.x base scores, CWE mappings and cross-references to advisories.
Region
US
Updates
15 min
License
Public Domain
Comprehensive catalog of publicly disclosed vulnerabilities with CPE matches, CVSS scoring and reference URLs. De-facto standard for cross-vendor correlation.
https://nvd.nist.gov →Share link
Anyone with the link can open this vulnerability.
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when …
CVSS
6.5
Medium
EPSS
0.00
p17
Published
2026-01-01
Updated
2026-01-01
Description
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when using ACLs on message subjects, these ACLs were not applied in the `$MQTT.>` namespace, allowing MQTT clients to bypass ACL checks for MQTT subjects. Versions 2.11.15 and 2.12.6 contain a fix. No known workarounds are available.
Tags · CWE
Pre-auth
CWE-863
CWE-863ClassIncomplete
Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
https://cwe.mitre.org/data/definitions/863.html →Open in CWE collection →Affected products
Nats-server < 2.11.15Nats-server 2.12.0–2.12.6
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Timeline
2026-01-01
Published
2026-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: N
None (N)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: L
Low (L)
Integrity Impact
I: L
Low (L)
Availability Impact
A: N
None (N)
Exploit indicators
EPSS
0.003 · p17
Known exploited (KEV)
No
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Affected products
| Product | Vendor | Status |
|---|---|---|
| Tracked | ||
| nats-server | Tracked | |
| nats-server | * | Tracked |
| nats-server | Tracked | |
| nats-server | Tracked |
Source databases
ALT
ALT
ALT Linux Security Errata
ALT Linux is a family of independent Russian Linux distributions built on the Sisyphus repository by BaseALT and certified by ФСТЭК for government and critical-infrastructure use. This source aggregates ALT's published errata (errata.altlinux.org / OVAL) with БДУ ФСТЭК records that flag ALT as an affected platform, mapping each issue to the fixing package and branch.
Region
RU
Updates
1 ч
License
Открытые данные
Security errata for the ALT family of Russian Linux distributions (Sisyphus plus the p9/p10/p11 stable branches), combined with БДУ ФСТЭК's mapping of ALT as an affected platform.
https://errata.altlinux.org →ANC
ANC
Anchore Vulnerability Database overrides
Supplementary feed layered on top of upstream sources. Anchore maintainers publish override records to suppress known false positives and fill CPE/PURL gaps that would otherwise cause Grype and similar scanners to mis-report a system.
Region
US
Updates
6 ч
License
Apache-2.0
Curated corrections to the Anchore/Grype vulnerability database: false-positive suppressions, missing CPE mappings and distro-specific backport fixes.
https://github.com/anchore/grype-db →DEB
DEB
Debian Security Advisories (DSA)
DSAs are published by the Debian Security Team for issues affecting the stable distribution. The downstream tracker (security-tracker.debian.org) additionally maps every CVE to its package-level status across all supported suites.
Region
Intl.
Updates
1 ч
License
Public Domain
Advisories covering the Debian stable and oldstable releases. Ship notes include the exact .deb version that remediates each issue.
https://www.debian.org/security/ →CVE
CVE
National Vulnerability Database
NVD is the U.S. government repository of standards-based vulnerability management data, built on top of the MITRE CVE list. Every record includes CPE applicability statements, CVSS v2 and v3.x base scores, CWE mappings and cross-references to advisories.
Region
US
Updates
15 min
License
Public Domain
Comprehensive catalog of publicly disclosed vulnerabilities with CPE matches, CVSS scoring and reference URLs. De-facto standard for cross-vendor correlation.
https://nvd.nist.gov →ALT errata