CVE-2026-28514Network attack vector

Account takeover via unawaited password validation

Published Mar 6, 2026 · Updated Mar 6, 2026

Authentication bypass in Rocket.Chat's ddp-streamer account service allows remote attackers to take over password-based accounts. loginViaUsername treats the Promise returned by validatePassword as a truthy validation result because the asynchronous call lacks await. Exploitation requires the Enterprise ddp-streamer microservice, a known or guessable username, and a password set on the target account.

CVSS severity9.3
Critical
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Rocket.Chat's ddp-streamer account service allows remote attackers to take over password-based accounts. loginViaUsername treats the Promise returned by validatePassword as a truthy validation result because the asynchronous call lacks await. Exploitation requires the Enterprise ddp-streamer microservice, a known or guessable username, and a password set on the target account.

The record

CVE
CVE-2026-28514
Published
Mar 6, 2026
Updated
Mar 6, 2026
Vendor
Rocket.Chat Technologies Corp.
Product
Rocket.Chat
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=< 7.10.7
  2. Affected versionversion=< 7.11.4
  3. Affected versionversion=< 7.12.4
  4. Affected versionversion=< 7.13.3
  5. Affected versionversion=< 7.8.6
  6. Affected versionversion=< 7.9.8
  7. Affected versionversion=< 8.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rocket.Chat Technologies Corp. · Rocket.Chatversion=< 7.10.7; version=< 7.11.4; version=< 7.12.4; version=< 7.13.3; version=< 7.8.6; version=< 7.9.8; version=< 8.0.0

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

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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