CVE-2022-24450Network attack vector

Authenticated privilege escalation via unchecked account switch

Published Feb 8, 2022 · Updated Aug 3, 2024

Authorization bypass in NATS Server 2.7.1 and earlier allows remote authenticated users to assume any account through a crafted handshake. The experimental dynamic sandbox-account handler accepts an existing target account during the initial protocol handshake without verifying that the credentials authorize it. Any valid account credential permits entry into another tenant or the System account; NATS Streaming Server 0.15.0 through 0.24.0 embeds the affected server.

CVSS severity8.8
High
EPSS probability1.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in NATS Server 2.7.1 and earlier allows remote authenticated users to assume any account through a crafted handshake. The experimental dynamic sandbox-account handler accepts an existing target account during the initial protocol handshake without verifying that the credentials authorize it. Any valid account credential permits entry into another tenant or the System account; NATS Streaming Server 0.15.0 through 0.24.0 embeds the affected server.

The record

CVE
CVE-2022-24450
Published
Feb 8, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0NIST NVDAV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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