CVE-2026-49277Public exploitNetwork attack vector

Continued API access via unrevoked OAuth tokens

Published Jun 24, 2026 · Updated Jun 24, 2026

Insufficient token expiration in affected Rocket.Chat releases allows remote authenticated users to retain API access after deactivation. setUserActiveStatus revokes only Meteor login tokens, while OAuth bearer authentication omits the user.active check and refresh handling issues new access tokens without validating account state. Exploitation requires OAuth access or refresh credentials issued before an administrator deactivates the account, preserving the account's authorized read and write access.

CVSS severity2.3
Low
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient token expiration in affected Rocket.Chat releases allows remote authenticated users to retain API access after deactivation. setUserActiveStatus revokes only Meteor login tokens, while OAuth bearer authentication omits the user.active check and refresh handling issues new access tokens without validating account state. Exploitation requires OAuth access or refresh credentials issued before an administrator deactivates the account, preserving the account's authorized read and write access.

The record

CVE
CVE-2026-49277
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Rocket.Chat Technologies Corp.
Product
Rocket.Chat
Classifications
CWE-613, T1550.001
Attack vector
network
Privileges
authenticated

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=< 7.10.12
  2. Affected versionversion=>= 7.11.0-rc.0, < 7.13.8
  3. Affected versionversion=>= 8.0.0-rc.0, < 8.0.6
  4. Affected versionversion=>= 8.1.0-rc.0, < 8.1.5
  5. Affected versionversion=>= 8.2.0-rc.0, < 8.2.4
  6. Affected versionversion=>= 8.3.0-rc.0, < 8.3.4
  7. Affected versionversion=>= 8.4.0-rc.0, < 8.4.2
  8. Affected versionversion=>= 8.5.0-rc.0, < 8.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Rocket.Chat Technologies Corp. · Rocket.Chatversion=< 7.10.12; version=>= 7.11.0-rc.0, < 7.13.8; version=>= 8.0.0-rc.0, < 8.0.6; version=>= 8.1.0-rc.0, < 8.1.5; version=>= 8.2.0-rc.0, < 8.2.4; version=>= 8.3.0-rc.0, < 8.3.4; version=>= 8.4.0-rc.0, < 8.4.2; version=>= 8.5.0-rc.0, < 8.5.0

Published CVSS scores

2.3GitHub, Inc.CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1550.001Use Alternate Authentication Material: Application Access Token

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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