CVE-2026-45688Public exploitNetwork attack vector

Unauthenticated session hijacking via credential-token query injection

Published Jun 24, 2026 · Updated Jun 24, 2026

NoSQL injection in Rocket.Chat's CAS login handler allows remote attackers to hijack CAS or SAML sessions across eight affected branches. The handler inserts an untyped credentialToken object into a MongoDB findOne query, allowing an operator to select any unexpired credential row. Exploitation requires network access, CAS or SAML use, and a legitimate login within the 60-second token window; success grants the victim's full session.

CVSS severity9.1
Critical
EPSS probability0.49%
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 Rocket.Chat's CAS login handler allows remote attackers to hijack CAS or SAML sessions across eight affected branches. The handler inserts an untyped credentialToken object into a MongoDB findOne query, allowing an operator to select any unexpired credential row. Exploitation requires network access, CAS or SAML use, and a legitimate login within the 60-second token window; success grants the victim's full session.

The record

CVE
CVE-2026-45688
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

9.1GitHub, Inc.CVSS: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.

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
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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