CVE-2026-34082Public exploitNetwork attack vector

Cross-user chat deletion via missing ownership check

Published Apr 20, 2026 · Updated Apr 20, 2026

Incorrect authorization in LangGenius Dify before 1.13.1 allows remote authenticated users to delete other users' chat conversations. The conversation DELETE endpoint accepts an attacker-supplied conversation ID without verifying that the conversation belongs to the requesting account. Any authenticated role can trigger the deletion, but the target conversation GUID must be known.

CVSS severity5.3
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in LangGenius Dify before 1.13.1 allows remote authenticated users to delete other users' chat conversations. The conversation DELETE endpoint accepts an attacker-supplied conversation ID without verifying that the conversation belongs to the requesting account. Any authenticated role can trigger the deletion, but the target conversation GUID must be known.

The record

CVE
CVE-2026-34082
Published
Apr 20, 2026
Updated
Apr 20, 2026
Vendor
LangGenius
Product
Dify
Classifications
CWE-284, CWE-863, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 20, 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=< 1.13.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LangGenius · Difyversion=< 1.13.1

Published CVSS scores

4.3NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
5.3GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-863Incorrect Authorization
T1485Data Destruction

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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