CVE-2026-68929Public exploitNetwork attack vectorHinoki check available

Unauthenticated channel hijack and outage via shareId authorization

Published Aug 27, 2026 · Updated Aug 27, 2026

Missing authorization in FastGPT 4.14.10 through 4.14.28 and 4.15.0 through 4.15.1 allows remote attackers to hijack WeChat channels. The logout handler clears a channel token after only checking that a public shareId exists, while the QR status handler writes bot credentials without authenticating the caller or verifying team ownership. Knowledge of a shared-link identifier enables an immediate channel outage; hijacking additionally requires scanning a generated QR code and exposes private app responses to the attacker's bot.

CVSS severity7.1
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authorization in FastGPT 4.14.10 through 4.14.28 and 4.15.0 through 4.15.1 allows remote attackers to hijack WeChat channels. The logout handler clears a channel token after only checking that a public shareId exists, while the QR status handler writes bot credentials without authenticating the caller or verifying team ownership. Knowledge of a shared-link identifier enables an immediate channel outage; hijacking additionally requires scanning a generated QR code and exposes private app responses to the attacker's bot.

The record

CVE
CVE-2026-68929
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
Labring
Product
FastGPT
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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=>= 4.14.10, < 4.14.29
  2. Affected versionversion=>= 4.15.0, < 4.15.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Labring · FastGPTversion=>= 4.14.10, < 4.14.29; version=>= 4.15.0, < 4.15.2

Published CVSS scores

7.1GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

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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