CVE-2025-30215Public exploitNetwork attack vector

Cross-account data destruction via unchecked JetStream APIs

Published Apr 15, 2025 · Updated Apr 17, 2025

Improper authorization in affected NATS Server releases allows remote authenticated users to delete JetStream configuration and data. Handlers for ACCOUNT.PURGE, SERVER.REMOVE, STREAM.MOVE, and CANCEL_MOVE accept requests from non-system accounts without verifying system-account authorization. JetStream management permission on the affected $JS API subjects is required; successful requests cross account boundaries, and purge deletes configuration and stored messages without disclosing stream contents.

CVSS severity9.6
Critical
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in affected NATS Server releases allows remote authenticated users to delete JetStream configuration and data. Handlers for ACCOUNT.PURGE, SERVER.REMOVE, STREAM.MOVE, and CANCEL_MOVE accept requests from non-system accounts without verifying system-account authorization. JetStream management permission on the affected $JS API subjects is required; successful requests cross account boundaries, and purge deletes configuration and stored messages without disclosing stream contents.

The record

CVE
CVE-2025-30215
Published
Apr 15, 2025
Updated
Apr 17, 2025
Vendor
NATS.io
Product
NATS Server
Classifications
CWE-285, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.11.0-RC.1, < 2.11.1
  2. Affected versionversion=>= 2.2.0, < 2.10.27

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NATS.io · NATS Serverversion=>= 2.11.0-RC.1, < 2.11.1; version=>= 2.2.0, < 2.10.27

Published CVSS scores

9.6GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

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 exploitPublished

Weakness, pattern, technique

CWE-285Improper Authorization
T1485Data Destruction

Public exploit references

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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