CVE-2026-45689Public exploitNetwork attack vector

Unauthenticated account takeover via OAuth query injection

Published Jun 24, 2026 · Updated Jun 24, 2026

NoSQL injection in affected Rocket.Chat release lines allows remote attackers to obtain arbitrary users' OAuth access tokens. The OAuth2 server passes non-string client_id, client_secret, and refresh_token values into MongoDB findOne queries, allowing operators such as $ne to match stored application and refresh-token records. An active OAuth app and at least one completed historical authorization are required; each successful request returns bearer credentials with the matched user's API privileges.

CVSS severity9.1
Critical
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NoSQL injection in affected Rocket.Chat release lines allows remote attackers to obtain arbitrary users' OAuth access tokens. The OAuth2 server passes non-string client_id, client_secret, and refresh_token values into MongoDB findOne queries, allowing operators such as $ne to match stored application and refresh-token records. An active OAuth app and at least one completed historical authorization are required; each successful request returns bearer credentials with the matched user's API privileges.

The record

CVE
CVE-2026-45689
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Rocket.Chat Technologies Corp.
Product
Rocket.Chat
Classifications
CWE-943, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2026Record 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=< 7.10.11
  2. Affected versionversion=>= 7.11.0-rc.0, < 7.13.7
  3. Affected versionversion=>= 8.0.0-rc.0, < 8.0.5
  4. Affected versionversion=>= 8.1.0-rc.0, < 8.1.4
  5. Affected versionversion=>= 8.2.0-rc.0, < 8.2.3
  6. Affected versionversion=>= 8.3.0-rc.0, < 8.3.3
  7. Affected versionversion=>= 8.4.0-rc.0, < 8.4.1
  8. Affected versionversion=>= 8.5.0-rc.0, < 8.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rocket.Chat Technologies Corp. · Rocket.Chatversion=< 7.10.11; version=>= 7.11.0-rc.0, < 7.13.7; version=>= 8.0.0-rc.0, < 8.0.5; version=>= 8.1.0-rc.0, < 8.1.4; version=>= 8.2.0-rc.0, < 8.2.3; version=>= 8.3.0-rc.0, < 8.3.3; version=>= 8.4.0-rc.0, < 8.4.1; version=>= 8.5.0-rc.0, < 8.5.0

Published CVSS scores

9.1GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-943Improper Neutralization of Special Elements in Data Query Logic
T1190Exploit Public-Facing Application

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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